DESYNAPSIS IN DIPLOID AND TETRAPLOID CLONES OF RYEGRASS

被引：12

作者：

AHLOOWALIA, BS

机构：

[1] Plant Sciences Division, An Foras Talúntais (Agricultural Institute), Carlow, Oak Park

来源：

GENETICA | 1969年 / 40卷 / 03期

关键词：

D O I：

10.1007/BF01787363

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Desynapsis is described in diploid and tetraploid plants of perennial ryegrass. The plants were derived by repeated cloning of a single mixoploid (2 n=14 and 28) detected among colchicine-treated seedlings. The diploid and tetraploid clones varied in degree of desynapsis, chiasma number, and fertility. The variation among the clones was probably environmental. The progeny of the mixoploid parent included dipoids, tetraploids, and an aneuploid. One diploid and the aneuploid were desynaptic and originated perhaps by selfing. Apparently a single recessive gene determined desynapsis. The role of synaptic genes in controlling the chemical structure and function of nucleoprotein macromolecules is discussed. © 1969 Martinus Nijhoff.

引用

页码：379 / +

页数：1

共 18 条

[1] COLCHICINE INDUCED POLYPLOIDS IN RYEGRASS [J].