Becker, Heiko C.

[["dc.bibliographiccitation.firstpage","1444"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Crop Science"],["dc.bibliographiccitation.lastpage","1449"],["dc.bibliographiccitation.volume","41"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Rucker, B."],["dc.contributor.author","Becker, H. C."],["dc.date.accessioned","2018-11-07T08:40:44Z"],["dc.date.available","2018-11-07T08:40:44Z"],["dc.date.issued","2001"],["dc.description.abstract","High oleic (HO) winter oilseed rape (Brassica napus L.) with increased oleic acid content in the seed is of interest for nutritional and industrial purposes. The objectives of the present study were to (i) describe the fatty acid composition in the seed, leaf, and root material of eight HO mutants; (ii) estimate the number of genes controlling the trait; (iii) test whether the mutants are allelic for the mutated loci; and (iv) determine the inheritance of the HO trait. An 8-by-8 diallel of the HO mutants and two crosses between HO mutants and a normal type cultivar with their segregating F, and BC generations were used. The results suggested that the variation in oleic acid can be explained by two mutation events. One mutated locus (HO1) was expressed mainly in the seeds and all mutants were assumed to be allelic at this locus. A second mutated locus (HO2), which increased the oleic acid content not only in the seed but also in leaves and roots, was identified in one mutant line. Both loci showed mainly additive effects: for HO1 a = 8.0 +/- 1.5 and for HO1+HO2 a = 9.25 +/- 1.5 (in percent oleic acid in the seed oil). Only small nonsignificant dominance effects and no epistatic or maternal effects were observed. The reduction of oleic acid desaturation in the mutants indicates that the HO1 locus is equivalent to fad2, the microsomal oleic acid desaturase, whereas the locus HO2 affects a different enzyme involved in fatty acid biosynthesis or desaturation."],["dc.identifier.isi","000176236800012"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19303"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Crop Science Soc Amer"],["dc.relation.issn","0011-183X"],["dc.title","Inheritance of high oleic acid mutations in winter oilseed rape (Brassica napus L.)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","63"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Plant Breeding"],["dc.bibliographiccitation.lastpage","66"],["dc.bibliographiccitation.volume","120"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Becker, H. C."],["dc.date.accessioned","2018-11-07T09:26:11Z"],["dc.date.available","2018-11-07T09:26:11Z"],["dc.date.issued","2001"],["dc.description.abstract","Winter oilseed rape, with high oleic (HO) acid contents (C18 : 1) is of interest for nutritional as well as for industrial purposes. HO mutants have been described, but only limited information is available on any environmental influence on the expression of oleic acid content in these mutants. Therefore, a population of 60 doubled-haploid (DH) lines segregating for oleic acid content (56-75% C18 : 1) was grown in two years at three locations in northern Germany. Analysis of variance revealed a high heritability for oleic acid content of h(2) = 0.99. Subdivid ing the DH population into a high (> 64% C18 : 1) and a low ( < 64% C18 : 1) oleic acid class showed high heritabilities (h(2) = 0.94) for C18 : 1 contents within both the high and low oleic acid types. The oleic acid contents in HO types of winter oilseed rape were environmentally stable at the three locations tested."],["dc.identifier.doi","10.1046/j.1439-0523.2001.00549.x"],["dc.identifier.isi","000167407300011"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/30242"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Blackwell Wissenschafts-verlag Gmbh"],["dc.relation.issn","0179-9541"],["dc.title","Environmental variability and heritability of high oleic acid content in winter oilseed rape"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2952"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Crop Science"],["dc.bibliographiccitation.lastpage","2961"],["dc.bibliographiccitation.volume","56"],["dc.contributor.author","Miersch, Sebastian"],["dc.contributor.author","Gertz, Andreas"],["dc.contributor.author","Breuer, Frank"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Becker, Heiko C."],["dc.date.accessioned","2018-11-07T10:06:18Z"],["dc.date.available","2018-11-07T10:06:18Z"],["dc.date.issued","2016"],["dc.description.abstract","A higher nitrogen (N) use efficiency is an important breeding goal in crops such as oilseed rape (Brassica napus L.) that are considered less N efficient compared with crops like wheat (Triticum aestivum L.) or barley (Hordeum vulgare L.). Changes in the plant ideotype, such as reduced plant height of semi-dwarf hybrids, are said to result in an increased harvest index and N harvest index. This could lead to a higher N efficiency, especially when N availability is restricted. A double haploid population was developed that was segregating for the bzh dwarf locus, with 54 dwarf and 54 normal-type lines. By crossing with a normal-type tester, 108 testcrosses were produced with 54 hybrids each of semi-dwarf and normal types. They were evaluated for seed yield, straw yield, and N content under zero and high N fertilization in six and four trials, respectively, in the years 2010 to 2013. Quantitative trait loci were estimated for N-related traits across environments. Semi-dwarf hybrids showed a significantly higher N harvest index, N uptake efficiency, N utilization efficiency, and N use efficiency compared with normal-type hybrids at N deficiency. The relative contribution of N uptake efficiency to the total genetic variation in N use efficiency was higher in semi-dwarf genotypes than in normal-type hybrids at both N levels. Quantitative trait loci of five and two N-related traits under zero and high N fertilization, respectively, cosegregated with the bzh-locus on linkage group A06, indicating that the semi-dwarf growth type has a high influence on N efficiency. We conclude that semi-dwarf hybrids are better adapted to N deficiency."],["dc.description.sponsorship","European Community [NUE-CROPS FP7-CP-IP222645]"],["dc.identifier.doi","10.2135/cropsci2016.01.0044"],["dc.identifier.isi","000388510200008"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14034"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39063"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Crop Science Soc Amer"],["dc.relation.issn","1435-0653"],["dc.relation.issn","0011-183X"],["dc.rights","CC BY-NC-ND 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/4.0"],["dc.title","Influence of the Semi-dwarf Growth Type on Nitrogen Use Efficiency in Winter Oilseed Rape"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","31"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Applied Genetics"],["dc.bibliographiccitation.lastpage","35"],["dc.bibliographiccitation.volume","53"],["dc.contributor.author","Ofori, Atta"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Becker, Heiko C."],["dc.date.accessioned","2018-11-07T09:14:00Z"],["dc.date.available","2018-11-07T09:14:00Z"],["dc.date.issued","2012"],["dc.description.abstract","Because of its high growth rate at low temperatures in early spring, there is renewed interest in Brassica rapa as a winter crop for biomass production in Europe. The available cultivars are not developed for this purpose however. An approach for breeding bioenergy cultivars of B. rapa could be to establish populations from two or more different cultivars with high combining ability. The objective of this study was to evaluate the heterosis for biomass yield in the European winter B. rapa genepool. The genetic variation and heterosis of the biomass parameters: dry matter content, fresh and dry biomass yields were investigated in three cultivars representing different eras of breeding by comparing full-sibs-within and full-sibs-between the cultivars. Field trials were performed at two locations in Germany in 2005-2006. Mean mid-parent heterosis was low with 2.5% in fresh and 3.0% in dry biomass yield in full-sibs-between cultivars. Mean values of individual crosses revealed a higher variation in mid-parent heterosis ranging from 14.6% to -7.5% in fresh biomass yield and from 19.7% to -12.7% in dry biomass yield. The low heterosis observed in hybrids between European winter cultivars can be explained by the low genetic variation between these cultivars as shown earlier with molecular markers. In conclusion, a B. rapa breeding program for biomass production in Europe should not only use European genetic resources, but should also utilize the much wider worldwide variation in this species."],["dc.description.sponsorship","FNR (Agency for Renewable Resources)"],["dc.identifier.doi","10.1007/s13353-011-0067-8"],["dc.identifier.isi","000299525700005"],["dc.identifier.pmid","22002119"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8893"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27296"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.publisher.place","Heidelberg"],["dc.relation.issn","1234-1983"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Biomass yield and heterosis of crosses within and between European winter cultivars of turnip rape (Brassica rapa L.)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","891"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Annals of Botany"],["dc.bibliographiccitation.lastpage","901"],["dc.bibliographiccitation.volume","124"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Tietz, Tina"],["dc.contributor.author","Bienert, Gerd Patrick"],["dc.contributor.author","Gertz, Andreas"],["dc.contributor.author","Miersch, Sebastian"],["dc.contributor.author","Becker, Heiko C"],["dc.date.accessioned","2020-12-10T18:17:18Z"],["dc.date.available","2020-12-10T18:17:18Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1093/aob/mcy197"],["dc.identifier.eissn","1095-8290"],["dc.identifier.issn","0305-7364"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17117"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/75069"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Root system size response of bzh semi-dwarf oilseed rape hybrids to different nitrogen levels in the field"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1789"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Crop Science"],["dc.bibliographiccitation.lastpage","1797"],["dc.bibliographiccitation.volume","60"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Holzenkamp, Karin"],["dc.contributor.author","Hartwig, Henning"],["dc.contributor.author","Gertz, Andreas"],["dc.contributor.author","Becker, Heiko"],["dc.date.accessioned","2021-04-14T08:24:55Z"],["dc.date.available","2021-04-14T08:24:55Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1002/csc2.20118"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81468"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1435-0653"],["dc.relation.issn","0011-183X"],["dc.title","Winter oilseed rape semi‐dwarf hybrids are not discriminated by front‐border effects in yield trials"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","493"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Crop Science"],["dc.bibliographiccitation.lastpage","500"],["dc.bibliographiccitation.volume","55"],["dc.contributor.author","Hom, Nang Hseng"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Moellers, Christian"],["dc.contributor.author","Becker, Heiko C."],["dc.date.accessioned","2018-11-07T10:00:05Z"],["dc.date.available","2018-11-07T10:00:05Z"],["dc.date.issued","2015"],["dc.description.abstract","The genetics of seed compounds is complex because seed quality traits might be exclusively determined by the genotype of the female parent or, depending on the genotype of the embryo, may also be affected by the genotype of the pollen parent. For many quality traits of oilseed rape (Brassica napus L.), the influence of the pollen parent is not well known. In this study, two male sterile lines (female parent) were pollinated by 10 genotypes (pollen parent) differing largely in seed quality. Field experiments were conducted at three locations in Northern Germany, with two replications in 1 yr. Pollen parents were sown in plots and 10 male sterile plants from each female parent were hand planted into the center of each plot. Seeds were harvested from pollen parents and from the interplanted female parents. Seeds were analyzed for oil, protein, and sinapic acid esters by near-infrared reflectance spectroscopy; for glucosinolate and tocopherol content by high-performance liquid chromatography; and for fatty acid content by gas liquid chromatography. Earlier results were confirmed in that fatty acid composition is dependent on the embryo genotype and is therefore largely influenced by the pollen parent. Significant pollen parent effects were also observed for oil content, indole glucosinolate, sinapoylglucose, total sinapic acid ester, and gamma-tocopherol contents. The F-1 seed quality was positively correlated with the pollen parent seed quality. In conclusion, not only the fatty acid composition but also other seed quality traits such as oil content are influenced by the genotype of the pollen parent. This should be considered when analyzing open pollinated plants."],["dc.identifier.doi","10.2135/cropsci2014.04.0284"],["dc.identifier.isi","000352223000003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37723"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Crop Science Soc Amer"],["dc.relation.issn","1435-0653"],["dc.relation.issn","0011-183X"],["dc.title","Pollen Genotype Effects on Seed Quality Traits in Winter Oilseed Rape"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","728"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Crop Science"],["dc.bibliographiccitation.lastpage","731"],["dc.bibliographiccitation.volume","44"],["dc.contributor.author","Marwede, V."],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Mollers, C."],["dc.contributor.author","Becker, H. C."],["dc.date.accessioned","2018-11-07T10:49:11Z"],["dc.date.available","2018-11-07T10:49:11Z"],["dc.date.issued","2004"],["dc.description.abstract","Tocopherols are natural antioxidants found in all vegetable oils. They are important dietary nutrients and thus breeding for increased tocopherol content is a new and important objective in canola (Brassica napus L.). Tocopherols exist in four forms (alpha-, beta-, gamma-, and delta-tocopherol) differing in molecular structure and biological effectiveness. In the seed oil of canola, mainly a- and gamma-tocopberol are found with an alpha/-gamma-tocopherol ratio of about 0.5. Three canola populations of doubled haploid lines were grown in three to four field environments to analyze genetic variance and genotype X environment interactions as well as heritability of tocopherols and correlations with other seed components. Significant genotypic differences occur, but large genotype X environment interactions are the major source of variation. Heritability of tocopherol was low in all three populations; the estimates ranged from 0.23 to 0.44 for alpha-tocopherol and from 0.33 to 0.50 for gamma-tocopherol. Heritability for tocopheroll content is considerably lower than heritability of oil content (0.56-0.90), protein content (0.43-0.76), or glucosinolate content (0.91-0.95). No correlation between alpha- and gamma-tocopherol or between tocopherol and oil, protein, and glucosinolate content was detected. Individual tocopherols can be increased independently of each other and without affecting other major quality traits."],["dc.identifier.isi","000221390000003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/48369"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Crop Science Soc Amer"],["dc.relation.issn","0011-183X"],["dc.title","Genotype X environment interactions and heritability of tocopherol contents in canola"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1441"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Genetic Resources and Crop Evolution"],["dc.bibliographiccitation.lastpage","1447"],["dc.bibliographiccitation.volume","59"],["dc.contributor.author","Girke, Andreas"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Becker, Heiko C."],["dc.date.accessioned","2018-11-07T09:05:30Z"],["dc.date.available","2018-11-07T09:05:30Z"],["dc.date.issued","2012"],["dc.description.abstract","Resynthesized Brassica napus L. could be employed to increase the genetic variation in the narrow oilseed rape genepool and to establish a genetically distant genepool for hybrid breeding. One important criterion for selecting appropriate resynthesized lines is their genetic distance to adapted breeding material. In this study we estimated the genetic distances in a wide collection of 142 resynthesized lines and 57 winter and spring rapeseed cultivars from Europe, North America and Asia using RFLP marker data. The highest in-group genetic distance (0.36) was observed in 142 resynthesized lines compared to 0.21 in winter, 0.23 in summer, and 0.28 in Asian genotypes. The group of adapted breeding material clustered into three groups of winter-, spring-type, and Asian genotypes. Resynthesized lines did not form distinct subgroups in the cluster analysis, but large differences were revealed in the genetic distance of resynthesized lines to the adapted winter oilseed rape genepool. The highest distance to winter oilseed rape was found in resynthesized lines with parental lines from the Asian genepool as B. oleracea convar. botrytis var. alboglabra (Bail.) Sun or B. rapa ssp. chinensis (L.) Hanelt."],["dc.identifier.doi","10.1007/s10722-011-9772-8"],["dc.identifier.isi","000308818800015"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8848"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25334"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0925-9864"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Extending the rapeseed genepool with resynthesized Brassica napus L. I: Genetic diversity"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1573"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Crop Science"],["dc.bibliographiccitation.lastpage","1585"],["dc.bibliographiccitation.volume","56"],["dc.contributor.author","Miersch, Sebastian"],["dc.contributor.author","Gertz, Andreas"],["dc.contributor.author","Breuer, Frank"],["dc.contributor.author","Schierholt, Antje"],["dc.contributor.author","Becker, Heiko C."],["dc.date.accessioned","2018-11-07T10:11:51Z"],["dc.date.available","2018-11-07T10:11:51Z"],["dc.date.issued","2016"],["dc.description.abstract","In cereals like wheat (Triticum aestivum L.) or rice (Oryza sativa L.), a short-straw ideotype is characteristic for all modern cultivars, mainly due to the use of genes affecting the dwarf genotype. In oilseed rape (Brassica napus L.), several dwarf mutants are known but so far not widely used. An interesting approach is the production of semi-dwarf hybrids from dwarf and normal-type parents, which might have an increased harvest index (HI) and a higher grain yield, especially when nitrogen (N) availability is restricted. To this point, no systematic comparison using a large number of semi-dwarf and normal-type hybrids has been published. A double haploid (DH) population was developed that was segregating for the bzh dwarf locus with 54 dwarf and 54 normal-type lines. By crossing with a normal-type tester, 108 testcrosses were produced with 54 hybrids each of semi-dwarf and normal types. These were evaluated under high and zero N fertilization in five and seven environments, respectively, for yield and agronomic parameters. Quantitative trait loci (QTL) were estimated for yield-relevant traits. Semi-dwarf hybrids had a significantly higher yield compared with normal types in N-deficient conditions (2.24 and 2.05 Mg ha(-1)). At an optimal N supply, no significant difference between growth types was found for seed yield. Oil content was slightly lower in semi-dwarfs under both N treatments, whereas this was compensated by oil yield. All major QTL for plant height, straw yield, HI, and seed yield co-segregated with the bzh dwarf locus on linkage group A06, indicating that the dwarf gene is not only reducing plant height but also causing increased HI and higher yield under N limitation for semi-dwarf hybrids. We conclude that semi-dwarf hybrids are of high interest for the N-balanced oilseed rape production, especially when N is scarce."],["dc.description.sponsorship","European Community [NUE-CROPS-FP7-CP-IP 222645]"],["dc.identifier.doi","10.2135/cropsci2015.09.0554"],["dc.identifier.isi","000384757700016"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13810"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40127"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Crop Science Soc Amer"],["dc.relation.issn","1435-0653"],["dc.relation.issn","0011-183X"],["dc.rights","CC BY-NC-ND 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/4.0"],["dc.title","Influence of the Semi-dwarf Growth Type on Seed Yield and Agronomic Parameters at Low and High Nitrogen Fertilization in Winter Oilseed Rape"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]