溜下盾螨染色体组型及其G带的研究

Studies on Karyotype and G-Banded Chromosomes of Hypoaspis Lubrica

摘要: 本文首次报道了溜下盾螨（Hypoaspis lubrica）染色体组型及其G带的研究。结果表明，溜下盾螨组型为n=7，2n=14。具有单二倍体性决定系统。常规染色下未见明显的着丝粒。G带分析显示单倍体组有28-30条带。对溜下盾螨的组型和分带研究以及革螨染色体制片方法进行了讨论。并首次报道了一种适合于革螨染色体研究的方法——改良气干扰。

Abstract: This paper first reports the studies on karyotype and G-banding of the chromosome in Hypoaspis lubrica.The results showed that H.lubrica had 7 (male) and 14 (Female) chromosomes,and indicated a haplodiploidy sex determination system.H.lubrica did not show any constriction in karyotype analysis.There were 28 to 30 bands in haploid set of full metaphase by G-banding analysis.This paper first provided a useful method,modified air-drying technique,for studing chromosomes of gamasid mites.