杏(Prunus armeniaca)自交不亲和强度及其授粉受精相关特性

被引：11

作者：

冯建荣

陈学森

孔宁

束怀瑞

机构：

[1] 山东农业大学果树生物学实验室

来源：

果树学报 | 2006年 / 05期

关键词：

杏; 自交不亲和; 花粉管; RNA酶活性;

D O I：

10.13925/j.cnki.gsxb.2006.05.008

中图分类号：

S662.2 [杏];

学科分类号：

090201 ;

摘要：

为了解杏自交不亲和性强度与授粉受精相关特性的关系,以自交亲和(Self-compatibility:SC)品种凯特(Prunus armeniaca L．cv．Katy)和自交不亲和(Self-incompatibility:SI)品种新世纪(P.armeniaca L.cv．Xinshiji)及凯特×新世纪杂种群体为试材,荧光显微镜观察自交亲和与自交不亲和杏花粉管生长动态。结果表明,授粉后初期,自交亲和性与自交不亲和性的杏花粉都能正常萌发、生长,但是在花粉管生长延伸到花柱1／2以后,自交亲和性的花粉管能顺利进入子房,而自交不亲和性的花粉管多数顶端膨大呈球形,停止向下生长,只有极个别能正常生长到达子房;杂种后代的可溶性蛋白含量和RNA酶比活力,与亲本相比无明显的趋中变异表现,而且在自交亲和与自交不亲和杏之间无显著性差异。

引用

页码：690 / 694+786 +786

页数：6

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