Genetic changes following hybridization and genome doubling in synthetic Brassica napus
文献类型: 外文期刊
第一作者: Xu, Yanhao
作者: Xu, Yanhao;Xu, Hong;Wang, Jianbo;Xu, Yanhao;Wu, Xiaoming;Fang, Xiaoping
作者机构:
关键词: AFLP analysis;Brassica napus;Genome doubling;Hybridization
期刊名称:BIOCHEMICAL GENETICS ( 影响因子:1.89; 五年影响因子:1.959 )
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收录情况: SCI
摘要: Genetic changes were investigated in two sets of independently synthesized Brasscia napus allopolyploids by the AFLP approach in the present study. We found that 1.17 % of the loci showed genetic changes following both hybridization and genome doubling in the synthesized B. napus F04J2 relative to its diploid progenitors, B. rapa (AA genome) and B. oleracea (CC genome). No significant difference between the proportion of A-genome-specific genetic changes and that of C-genome-specific genetic changes was detected in B. napus F04J2. Approximately 0.6 % of the loci displayed genetic changes following somatic genome doubling in the amphidiploid B. napus DCE11 relative to the amphihaploid in the dimorphic plants. This study showed that rapid genetic changes occurred after hybridization and/or genome doubling in synthesized B. napus allopolyploids and indicated that both hybridization and genome doubling could affect the genomic architecture in newly formed allopolyploids.
分类号: Q3
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