Studies on Karyotype and G-Banded Chromosomes of Hypoaspis Lubrica

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.