水稻多倍性育种中的倍性鉴定方法研究  

The Identification Methods of Ploidy in Rice Polyploidy Breeding

作　　者：代西梅[1] 黄群策[1] 贾宏汝[1] 赵帅鹏[1] 

机构地区：[1]郑州大学离子束生物工程省重点实验室,河南郑州450052

出　　处：《华北农学报》2008年第4期94-96,共3页Acta Agriculturae Boreali-Sinica

基　　金：国家"863"项目(SZ-01-01-03);国家"十五"科技攻关项目(2001BA302B)

摘　　要：从水稻花粉粒、植株形态、种子形态和染色体计数等方面分别对不同倍性水稻植株的染色体倍性进行了鉴定。鉴定结果表明,随着细胞染色体倍性的增加,植物细胞和器官体积一般趋于增大,水稻花粉粒大小与染色体数目和倍性存在正相关性,可作为鉴定水稻倍性的参考指标;水稻植株形态和籽粒大小、芒的有无、着粒密度和结实率高低等性状与染色体倍性同样具有相关性,亦可作为鉴定水稻倍性的参考指标。This paper identified the chromosomal ploidy of rice according to the pollen, plant morphology, seed morphology and chromosome number. The results showed that the size of plant cells and organs tends to be enlarged with the increase of chromosomal ploidy. It was concluded that the size of pollen in rice has a positive correlation with the chromosome number and ploidy, while the plant morphology, grain size, availability of awn, grain density, setting percentage and other traits also have some correlation with the chromosomal ploidy. They can be a reference to distinguish the chromosomal ploidy of rice.

关 键 词：水稻 染色体 倍性鉴定 

分 类 号：S511.035.2[农业科学—作物学]