NUCLEAR-DNA CONTENT OF EGG, ZYGOTE AND YOUNG PRO-EMBRYO CELLS IN HORDEUM

被引：12

作者：

BENNETT, MD ^{[1
]}

SMITH, JB ^{[1
]}

机构：

[1] PLANT BREEDING INST, CAMBRIDGE CB2 2LQ, ENGLAND

来源：

CARYOLOGIA | 1976年 / 29卷 / 04期

关键词：

D O I：

10.1080/00087114.1976.10796517

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The nuclear DNA content of Feulgen stained zygotes and young proembryo cells was investigated by microdensitometry in 3 barley genotypes. Apart from a few abnormally low estimates for nuclei in newly fertilized egg cells (caused by failure of the staining reaction), the estimated DNA contents of nuclei in the zygotes and 2-celled proembryos were within, or close to, the expected 2C-4C range. The present results [Hordeum] differ from those for ''Hannchen'' barley in which it was claimed (Mericle and Mericle 1970) that the nuclear DNA content of zygotes was as high as 16C and minimally 8C, but agree with Woodward''s (1956) results for Tradescantia.

引用

页码：435 / 446

页数：12

共 20 条

[1]

Bell PR., 1960, P R SOC LONDON, V153B, P421

[2] TIME RATE AND MECHANISM OF CHROMOSOME ELIMINATION IN HORDEUM HYBRIDS [J].