摘要
本文研究了普通大麦(HordeumvugareL.)中spontaneum亚种的N带带型,并与vulgare亚种中的栽培大麦进行了比较,发现西亚种的N带带型存在一定的差异,这种差异主要表现在染色体长短臂中间带数目和位置的不同,而着丝粒带是一致的.因此两亚种N带带型差异是染色体种内多态性的表现,N带带型总体上的一致性一定程度上反映了它们间杂交的可亲和性.
It was observed that the N-banding pattern of the spontaneum subspcies was similar to that of thecultivated barley (vulgar subspecies). But the number and position of the interstitial banding in the longor short arms of these chromosomes show some variation between two subspecies. Cytological researchrevealed the variation of N-banding pattern belong to the interspecific polymorphism of chromosomes.
出处
《杭州大学学报(自然科学版)》
CSCD
1996年第1期58-61,共4页
Journal of Hangzhou University Natural Science Edition
基金
国家自然科学基金
关键词
大麦
染色体
N带带型
育种
barley (Hordeum vulgare L. ) chromosome
N-banding pattern