杂交粳稻同核异质不育系细胞质效应的研究  

Genetic Effects of Sterile Cytoplasm of Isonuclear Alloplasmic CMS Lines in Hybrid Rice (Oryza sativa L. subsp. japonica )

作　　者：王才林[1] 汤述翥[1] 汤玉庚[1] 

机构地区：[1]江苏省农业科学院粮食作物研究所,南京210014

出　　处：《中国水稻科学》1998年第2期65-71,共7页Chinese Journal of Rice Science

摘　　要：以具有ChinsurahBoroⅡ（BT）、滇型（D）、野败型（WA）和野栽型（WC）4种不育细胞质的不育系南粳11A和南粳34A及其相应保持系与77302－1、宁恢3－2、C57和C堡4个恢复系配制的杂种F1为材料，探讨了不育系细胞质对F1代12个性状的遗传效应。不育系细胞质对F1代的株高、穗颈长、每稳实粒数、结实率、收获指数和单株产量等性状有明显的负效应，而对稳数、每穗总粒数、千粒重和生物产量则有明显的正效应。不育系细胞质的这种遗传效应随细胞质来源的不同表现明显的差异，D型和BT型细胞质在多数性状上的表现优于WA型和WC型细胞质。此外，不育系细胞质与保持系细胞核和恢复系细胞核及三者之间的互作在多数性状上也有明显差异。Genetic effects of sterile cytoplasm on twelve agronomic characters of F, rice hybrids (Oryza sativaL. subsp. japonica ) were investigated. Two sets of isonuclear alloplasmic CMS lines (A lines) of Naming ilA andNaming 34A with four different cytoplasms of Chinsurah Chinsurah Ⅱ(BT), Eshandabagu (D),wild abortion(WA) andwild rice species/cultivars (WC) and their maintainer lines (B lines ), four restorer lines (R lines ) of 77302-1,Ninghui 3-2, C57 and C Bac were used to make hybrids of A lines × R lines (aF1 )and B lines X R lines(bF1 ). Cytoplasmic effects were determined by the difference of aF1-bF1. Significant negative effects on plant height, exsertedpanicle neck length, number of grains per panicle , seed setting rate , harvest index, and grain yield per plant andsignificant positive effects on 1000-grain weight were observed. Cytoplasmic effects significantly varied with different CMS cytoplasms, in which D and BT type cytoplasms had the advantages of WA and WC types for most of thecharacters. Cytoplasmic effects significantly varied with different nuclear backgrounds of B and R lines and the interaction of B × R.

关 键 词：粳稻 细胞质效应 杂交水稻 三系配套 

分 类 号：S511.220.3[农业科学—作物学]