摘要
随着水稻高产相关基因的克隆与功能分析,调控水稻产量的分子机理逐渐被人们了解与解读。株型控制由基因IPA1及4个直接控制分蘖的基因来共同完成。已报道的与穗发育相关的基因有11个,其中3个基因参与穗分化基本生物学过程,6个基因参与调控籽粒分化比率,2个基因参与调控穗分化期。控制水稻粒型和粒重的基因有5个,分别参与籽粒长、籽粒宽和灌浆过程。水稻产量基因的克隆与解读为水稻高产育种提供了理论指导。
With a large number of genes contributed to high-yield in rice had been mapped and cloned , the molecular mechanism underlying yield traits has been gradually understood in rice .IPA1 gene and four other genes directly con-trolling tiller development were cooperated with each other for conferring the plant architecture traits .Up to now, it was reported that 11 genes participated in the panicle formation , 3 of which were involved in the basic biological processes in panicle development , while 6 genes regulated the rate of spikelet formation , and 2 genes regulated the duration of panicle differentiation .Genes for determination of grain size or grain weight had five members , which were involved in grain length , grain width and the filling of grain , respectively .Cloning and understanding the mo-lecular nature of genes controlling rice yield traits may be a fundamental implication for rice genetic improvements .
出处
《浙江农业学报》
CSCD
北大核心
2014年第1期254-259,共6页
Acta Agriculturae Zhejiangensis
基金
国家转基因专项(2011ZX08009003001)
国家支撑计划(2011BAD35B0203)
植物分子遗传国家重点实验室开放课题(O809Z61171)
浙江省重大专项(8812计划)(2012C129012)
关键词
水稻
基因
产量性状
Oryza sativa L.
gene
yield traits
