摘要
本文研究了贵州短角直斑腿蝗(Stenocatantops m iststshenkoi)和长角直斑腿蝗(S.splendens)的核型和C带。结果显示:2种直斑腿蝗的染色体数目均为2n(♂)=22+xo=23,都属眷部着丝粒染色体,核型公式2n(♂)=23 t,NF=23,都属“4B”核型,都可按相对长度分成L、M、S 3组,都具着丝粒C带,但端带不是每种每条染色体都有,长角直斑腿蝗的异染色质总量(35.79%)比短角直斑腿蝗的(27.74%)多。
The kaxyotypes and c - banding patterns of Stenocatantops miststshenkoi and s. splendens were invertigated. The results showed that the chromosome number of both species are 2n（♂） =22 ＋ xo =23 ,and they are all terminal chromosomes, and the karyotype formulae are 2n（♂） =2x =23t, NF =23,and they all belong to ＂4B＂ karyotype. According to the relative length they can be divided into three groups of L,M ,and S and they have all telecentric - c - banding, but not always terminal - c - banding. And the total amount of beterochromatin of S. splendens（ 35.74% ） is more than that of s. miststshenkoi （27.74%）.
出处
《贵州科学》
2006年第3期44-47,共4页
Guizhou Science
基金
贵州省科学技术基金资助项目〔黔基合订字(1998)3060号〕
关键词
直斑腿蝗
核型
C带
stenocatantops
karyotype
c - banding
