Genomic signatures of vegetable and oilseed allopolyploid Brassica juncea and genetic loci controlling the accumulation of glucosinolates.
Genomic signatures of vegetable and oilseed allopolyploid Brassica juncea and genetic loci controlling the accumulation of glucosinolates.
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DOI：
10.1111/pbi.13687
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发表时间：
2021-12
影响因子：
13.8
通讯作者：
Zhang M
中科院分区：
文献类型：
--
作者：
Yang J;Wang J;Li Z;Li X;He Z;Zhang L;Sha T;Lyu X;Chen S;Gu Y;Li Z;Hu Z;He H;Bancroft I;Zhang M
异源多倍体芥菜型油菜是油菜科作物，因其广泛的适应性和重要的经济价值而日益成为蔬菜和油料作物。然而，不同蔬菜和油料B的基因组分化。芥菜和硫代葡萄糖苷积累的遗传基础尚未阐明。为了解决这一知识缺口，我们报告了蔬菜和油料种子B的成对基因组测序。Juncea的染色体水平。比较基因组学分析揭示了全景结构变异足迹，特别是与油料种子和蔬菜亚组之间的非生物和生物应激反应相关的HSP 20和TGA 1遗传位点。我们锚定了MYB28（HAG1）直系同源物的两个主要基因座，这两个基因座是由A02和A09染色体上的拷贝数变异引起的，使用了基于基因组SNP的GWAS，这些基因座负责决定种子油质量的硫代葡萄糖苷生物合成。这些发现将提供有价值的多倍体基因组信息库，使多倍体基因组进化研究和精确的基因组选择的关键性状，如B中的芥子油苷的功能成分。芥菜作物及其他作物。
Allopolyploid Brassica juncea crops in Brassicaceae are becoming increasingly revitalized as vegetables and oilseeds owing to wide adaptability and significant economic values. However, the genomic differentiation of diversified vegetables and oilseed B. juncea and the genetic basis underlying glucosinolates accumulation have yet to be elucidated. To address this knowledge gap, we report the sequencing of pairwise genomes of vegetable and oilseed B. juncea at chromosome scale. Comparative genomics analysis unveils panoramic structural variation footprints, particularly the genetic loci of HSP20 and TGA1 associated with abiotic and biotic stresses responses between oilseed and vegetable subgroups. We anchored two major loci of MYB28 (HAG1) orthologues caused by copy number variations on A02 and A09 chromosomes using scored genomic SNPs‐based GWAS that are responsible for seed oil quality‐determining glucosinolates biosynthesis. These findings will provide valuable repertories of polyploidy genomic information enabling polyploidy genome evolution studies and precise genomic selections for crucial traits like functional components of glucosinolates in B. juncea crops and beyond.
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DOI：
10.1093/dnares/dsu002
发表时间：
2014-08
期刊：
DNA research : an international journal for rapid publication of reports on genes and genomes
影响因子：
--
作者：
Li F;Chen B;Xu K;Wu J;Song W;Bancroft I;Harper AL;Trick M;Liu S;Gao G;Wang N;Yan G;Qiao J;Li J;Li H;Xiao X;Zhang T;Wu X
通讯作者：
Wu X
影响因子：
3.1
作者：
Chen, Sheng;Wan, Zhenjie;Cowling, Wallace A.
通讯作者：
Cowling, Wallace A.
影响因子：
13.8
作者：
Augustine, Rehna;Mukhopadhyay, Arundhati;Bisht, Naveen C.
通讯作者：
Bisht, Naveen C.
影响因子：
4.3
作者：
Kittipol, Varanya;He, Zhesi;Bancroft, Ian
通讯作者：
Bancroft, Ian
影响因子：
30.8
作者：
Hu, Yan;Chen, Jiedan;Zhang, Tianzhen
通讯作者：
Zhang, Tianzhen