EMS Induced Intercellular Chromatin Transmigration in Papaver somniferum L.

被引：1

作者：

Kumar, Girjesh ^{[1
]}

Naseem, Sana ^{[1
]}

机构：

[1] Univ Allahabad, Dept Bot, Plant Genet Lab, Allahabad 211002, Uttar Pradesh, India

来源：

CZECH JOURNAL OF GENETICS AND PLANT BREEDING | 2013年 / 49卷 / 02期

关键词：

cytomixis; ethyl methane sulphonate; microsporogenesis; pollen sterility; poppy; POLLEN MOTHER CELLS; CYTOMIXIS; POACEAE;

D O I：

10.17221/85/2012-CJGPB

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The phenomenon of chromatin migration was observed during microsporogenesis in an ethyl methane sulphonate (EMS) treated population of poppy, which is an important medicinal plant. Cytomixis occurred through a cytoplasmic channel or by direct fusion of pollen mother cells (PMCs); the former was more recurring than the latter. The process was associated with irregular meiosis. PMCs with differing chromosome numbers from the normal diploid number (2n = 22) through cytomixis may lead to the production of aneuploid and polyploid gametes. An increase in the concentration of EMS had a positive effect on the percentage of PMCs showing cytomixis. In addition to cytomixis, other chromosomal abnormalities were also found. Cytomixis along with the related chromosomal abnormalities largely affected the post-meiotic products resulting in some pollen sterility.

引用

页码：86 / 89

页数：4

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