菊属植物远缘杂交亲和性研究

园艺学报 ›› 2008, Vol. 35 ›› Issue (2): 257-262.

菊属植物远缘杂交亲和性研究

李辛雷1，2 ，陈发棣1*，赵宏波1

（1南京农业大学园艺学院，南京 210095；2中国林科院亚热带林业研究所，浙江富阳 311400）

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-02-25 发布日期:2008-02-25
通讯作者: 陈发棣

Compatibility of Interspecific Cross in Dendranthema Genus

LI Xin-lei1,2 , CHEN Fa-di1*, and ZHAO Hong-bo1

(1College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; 2Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang 311400, China)

Received:1900-01-01 Revised:1900-01-01 Online:2008-02-25 Published:2008-02-25
Contact: CHEN Fa-di

摘要/Abstract

摘要：

开展了不同倍性菊属物种间远缘杂交试验，比较不同杂交组合的杂交亲和指数，并对授粉后生殖生物学过程（柱头花粉附着、花粉萌发、花粉管生长、受精及子房发育）进行荧光显微观察。结果表明，具相同倍性的种间及四倍体与六倍体物种间杂交较易结籽，而二倍体与四倍体或六倍体间难以结籽，表现杂交不亲和性。菊属远缘杂交不亲和表现为柱头上花粉粒粘附少，花粉萌发率低，花粉管生长异常难以进入花柱，诱导柱头胼胝质生成，受精胚败育。

关键词: 菊属, 远缘杂交, 亲和性, 杂交不亲和

Abstract:

The interspecific cross was attempted between different species/cultivars of different ploidy in Dendranthema genus. The compatible index were calculated in different interspecific crosses. In addition, pollen adhesion, pollen germination, pollen tube growth, fertilization and ovary development were observed under fluoroscope. The results showed that seed-set was easily obtained from interspecific cross between the species of same ploidy or those between the tetraploid and hexaploid. However, few seed-set was obtained from the interpecifc cross between diploid and tetrapoliod or hexaploid species, i.e., incompatibility was observed. The incompatibility of interspecific cross was characterized by low pollen adhesion, low pollen germination rate, abnormal pollen tube hampered extension on the stigma, calloses deposit on the stigma and collapsed ovary.

Key words: Dendranthema, interspecific cross, compatibility, incompatibility

中图分类号:

S 682.1

李辛雷;;陈发棣;赵宏波. 菊属植物远缘杂交亲和性研究[J]. 园艺学报, 2008, 35(2): 257-262.

LI Xin-lei;;CHEN Fa-di;and ZHAO Hong-bo. Compatibility of Interspecific Cross in Dendranthema Genus [J]. ACTA HORTICULTURAE SINICA, 2008, 35(2): 257-262.

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