ScholarLens Back to search
2001•Kunchong zhishiRequires access

Chromosome karyotype analysis of four species of Chorthippus from Qinghai.

Yan Lin

Open publisher page 2 citations

Abstract

The chromosomal karyotypes of 4 species of the genus Chorthippus Fieb. from Qinghai Alpine Meadow were studied with method of conventional cytogenetics. The results indicated that chromosome numbers of the 4 species were same, with 2n(♂)=17=16+XO. Sixteen autosomes were composed of 6 metacentric chromosomes and 10 terminal chromosomes. The X sex\|chromosome was also a terminal chromosome.\;In C.brunneus, C.biguttulus and C.qingzangensis (Ying), the karyotype formula and chromosomal complement of relative length are K(2n,♂)=17=6m+11T=6L+6M+4S+XO,K(2n,♀)=18=6m+2T=6L+6M+4S+XX. In C.fallax, K(2n,♂)=17=6m+11T=6L+4M+6S+XO,K(2n,♀)=18=6m+12T=6L+4M+6S+XX.X sex\|chromosome of C.brunneus had a secondary constriction in median. Number fundamental of all four species were NF=23(♂),24(♀).

About this research paper

What this paper is about

The chromosomal karyotypes of 4 species of the genus Chorthippus Fieb. from Qinghai Alpine Meadow were studied with method of conventional cytogenetics. The results indicated that chromosome numbers of the 4 species were same, with 2n(♂)=17=16+XO. Sixteen autosomes were composed of 6 metacentric chromosomes and 10 terminal chromosomes. The X sex\|chromosome was also a terminal chromosome.\;In C.brunneus, C.biguttulus and C.qingzangensis (Ying), the karyotype formula and chromosomal complement of relative length are K(2n,♂)=17=6m+11T=6L+6M+4S+XO,K(2n,♀)=18=6m+2T=6L+6M+4S+XX. In C.fallax, K(2n,♂)=17=6m+11T=6L+4M+6S+XO,K(2n,♀)=18=6m+12T=6L+4M+6S+XX.X sex\|chromosome of C.brunneus had a secondary constriction in median. Number fundamental of all four species were NF=23(♂),24(♀).

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

The chromosomal karyotypes of 4 species of the genus Chorthippus Fieb. from Qinghai Alpine Meadow were studied with method of conventional cytogenetics. The results indicated that chromosome numbers of the 4 species were same, with 2n(♂)=17=16+XO. Sixteen autosomes were composed of 6 metacentric chromosomes and 10 terminal chromosomes. The X sex\|chromosome was also a terminal chromosome.\;In C.brunneus, C.biguttulus and C.qingzangensis (Ying), the karyotype formula and chromosomal complement of relative length are K(2n,♂)=17=6m+11T=6L+6M+4S+XO,K(2n,♀)=18=6m+2T=6L+6M+4S+XX. In C.fallax, K(2n,♂)=17=6m+11T=6L+4M+6S+XO,K(2n,♀)=18=6m+12T=6L+4M+6S+XX.X sex\|chromosome of C.brunneus had a secondary constriction in median. Number fundamental of all four species were NF=23(♂),24(♀).

Key concepts: Karyotype, Autosome, Biology, Secondary constriction, Chromosome, Y chromosome, Cytogenetics, Genetics

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Chromosome karyotype analysis of four species of Chorthippus from Qinghai. — Research Paper | ScholarLens