摘要
本文报道了玉米Ｂ染色体的数目及其在减数分裂中的行为。Ｂ染色体数目不稳定，原因之一是Ｂ染色体在减数分裂中的行为，然而，Ｂ染色体数目的变化也影响其在减数分裂中的行为。
The present paper reports the B chromosome number and behavior on meiosis in maize. The B chromosome number is unstable, and the most important factor is behavior of B chromosome on meiosis.However variance of the B chromosome number also affects their behavior on meiosis.
关键词
玉米
B染色体
细胞
遗传学
maize
B chhromosome microspore mother cell
meiosis
syndesis
bivalent
univalent
