贵阳地区蝗虫的染色体研究

THE RESEARCH OF LOCUSTS’CHROMOSOMESIN GUIYANG AREA

本文报道了贵阳地区５科１６属２０种蝗虫的染色体研究结果：２０种蝗虫中除锥头蝗科２种负蝗的染色体数目为２ｎ（）＝１８＋ＸＯ＝１９外，其余都是２ｎ（）＝２２＋ＸＯ＝２３，但所有染色体都是端着丝粒染色体，都具有着丝粒Ｃ－带；所不同的是染色体长度，核型类型。

This article reports the researching result about chromosomes of 5 families 16 genus 20 species Locusts in Guiyang:of the 20 species locusts,all the chromosomal number is 2n()=22+XO=23 ercept, Pyrgomorphidae 2 species and Atractamorpha is 2n()=18+XO=19,and all the chromosomes are telomere chromosomes, and they all have centromere C-band. There fove the differences among them are chromosomal length, Karytype, C-banding stripe and structure heterochromatic contentetc.