棉花优异品质及抗性基因挖掘与分子育种

发布时间：2018-09-07 21:43

【摘要】：棉花品质、产量、抗性等均是多基因控制的数量性状,其表现型受基因型和环境的共同影响,且纤维品质和产量性状之间存在较大的负相关,采用常规育种手段实现棉花纤维品质与产量的同步改良具难度很大,针对棉花品质、产量、抗性等性状形成的遗传基础这一关键科学问题,棉花品种分子设计研究团队以陆陆种内分离群体、陆海种间分离群体等材料,交叉利用分子数量遗传学、功能基因组学和分子育种学等研究手段,在陆地棉优质品质及抗性基因挖掘、海岛棉优质品质及抗性基因挖掘以及分子标记辅助方法开发及棉花新品种培育等方面取得了一系列研究成果。为棉花品质、产量、抗性性状形成的同步改良奠定了重要基础。
[Abstract]:Cotton quality, yield and resistance were all quantitative traits controlled by multiple genes, and their phenotypes were influenced by genotype and environment, and there was a negative correlation between fiber quality and yield traits. It is very difficult to realize the simultaneous improvement of cotton fiber quality and yield by conventional breeding methods. The key scientific problem is the genetic basis of cotton quality, yield, resistance and so on. The molecular design research team of cotton varieties used materials such as land and land species segregation population, land and sea interspecific segregation populations, and so on, using intersectional methods such as molecular quantitative genetics, functional genomics and molecular breeding, etc. A series of research results have been obtained in the fields of high quality and resistance gene mining of upland cotton, high quality and resistance gene mining of island cotton, development of molecular marker assistant method and breeding of new cotton varieties. It lays an important foundation for the synchronous improvement of cotton quality, yield and resistance characters.
【作者单位】：棉花生物学国家重点实验室/中国农业科学院棉花研究所;
【基金】：国家自然科学基金(31471538,31371668) 国家高科技研究发展计划(863计划)(2012AA101108) 中国农业科学院科技创新工程
【分类号】：S562

【相似文献】