染色体加倍在木薯与异常木薯的杂交种中诱导无融合生殖。

Chromosome doubling induces apomixis in a cassava x Manihot anomala hybrid.

作者信息

Nassar Nagib M A

机构信息

Universidade de Brasilia, Brasilia, Brazil.

出版信息

Hereditas. 2006 Dec;143(2006):246-8. doi: 10.1111/j.2006.0018-0661.01957.x.

DOI:10.1111/j.2006.0018-0661.01957.x

PMID:17362361

Abstract

A new species was synthesized artificially by chromosome doubling of an interspecific hybrid between cassava and Manihot anomala. The ensuing polyploid type exhibits an apomictic nature and maintains its morphological characteristics in the progeny. It showed a 29% frequency of multiembryonic sacs in its examined ovules whereas the multiembryonic sacs were absent in the diploid type.

摘要

通过木薯与异常木薯种间杂种的染色体加倍人工合成了一个新物种。随后产生的多倍体类型表现出无融合生殖的特性，并在后代中保持其形态特征。在所检查的胚珠中，其多胚囊频率为29%，而二倍体类型中不存在多胚囊。