花生种子休眠性的遗传分析及影响因素的研究  

Genetic Analysis and Factors Influencing Peanut ( Arachis hypogaea L. ) Seed Dormancy

作　　者：胡晓辉[1] 苗华荣[1] 杨伟强[1] 张建成[1] 陈静[1] 

机构地区：[1]山东省花生研究所/农业部花生生物学与遗传育种重点实验室/山东省花生重点实验室,山东青岛266100

出　　处：《核农学报》2013年第10期1449-1455,共7页Journal of Nuclear Agricultural Sciences

基　　金：山东省良种工程(高产优质花生新品种培育);青岛市科技发展计划(10-3-4-14-2-jch);青岛科技支撑计划(12-1-3-16 nsh);农业科技成果转化资金项目(2013GB2C600267)

摘　　要：以花育22号和06B16杂交后代衍生的包含146家系的RIL群体(F6、F7)为材料,不同年份种植,检测P1、P2及RIL群体各株系种子休眠性。运用植物数量性状主基因+多基因混合遗传模型进行花生种子休眠性遗传分析。结果表明:2010年和2011年花育22号x06B16组合种子休眠性的遗传均符合两对加性-上位性主基因+加性-上位性多基因混合遗传模型(E-1-0),且主基因遗传率大于多基因遗传率。相关性分析表明该组合后代的种子休眠性与油酸(C18:1)和花生烯酸(C22:1)含量呈极显著正相关、与棕榈酸(C16:0)和亚油酸(C18:2)含量呈显著负相关。去种皮发芽试验检测的7个有休眠的材料中,除H13和H17外,其它材料去除种皮后的种子发芽率均在90%以上,表明花生种子休眠性与种皮有一定关系。The seed dormancy was studied using P1, P2, and 146 lines of RIL population from crosse between Huayu22 ~06B16 across two years. By means of mixed major gene plus polygene inheritance models, genetic analysis showed that E - 1 - 0 was determined as the best-fitted inheritance model for the seed dormancy trait of RIL in two growing years. This trait followed the mixed inheritance of two major genes with additive-epistatic effects plus polygene with additive-epistatic effects. The heritability of major genes was larger than that of polygenes. Correlation analysis showed that seed dormancy of RIL had a very significant positive correlation with oleic acid （ C18 ： 1 ） and peanuts olefinic acid （ C22 ： 1 ） , and had a very significant negative correlation with palmitic acid （ C16 ： 0） and linoleic acid （ C18：2）. The coat removal test showed that the germination rate of 7 dormancy materials except H13 and H17 was more than 90% by removal of coat. The results indicated that seed coat affected peanut seed dormancy, but was not the only influence factor.

关 键 词：花生 种子休眠性 主基因+多基因 遗传 

分 类 号：S565.2[农业科学—作物学]