五种棺头蟋核型的比较研究

›› 2001, Vol. 44 ›› Issue (1): 40-45.

五种棺头蟋核型的比较研究

尤平¹，郑哲民²

出版日期:2001-02-20 发布日期:2001-02-20

Comparative study of karyotypes in five Loxoblemmus species

YOU Ping¹, ZHENG Zhe-min²

Online:2001-02-20 Published:2001-02-20

摘要/Abstract

摘要： 报道了中国5种棺头蟋的核型：石首棺头蟋Loxoblemmus equestris, 2n=17, XO(♂)；小棺头蟋L. aomoriensis, 2n=11, XO(♂); 哈尼棺头蟋L. haani, 2n=11, XO(♂)；多伊棺头蟋L. doenitzi, 2n=11, XO(♂)和窃棺头蟋L. detectus, 2n=11,XO(♂)。并应用核型似近系数及进化距离对这5种蟋蟀作了聚类分析，得出5种蟋蟀的演化方向为石首棺头蟋→小棺头蟋→哈尼棺头蟋→多伊棺头蟋→窃棺头蟋。

关键词: 棺头蟋属, 核型似近系数, 进化距离

Abstract: This is a report on the karyotypes of the five Loxoblemmus species in China. The chromosomal number of the five Loxoblemmus'diploid male varied between 11～17 with XO sex mechanism. Among these five species, L.aomoriensis, L.haani, L.doenitzi and L.detectus contained 5 pairs of autosomes and 1 X-chromosome while L.equestris contained 8 pairs of autosomes and 1 Xchromosome. According to the cluster analysis of the karyotype resemblancenear coefficients and evolutionary distance among the five crickets, the authors draw the conclusion that the evolutionary trend of the five crickets would be L.equestris→L.aomoriensis→L.haani→L.doenitzi→L.detectus.

Key words: Loxoblemmus, karyotype resemblance\|near coefficient, evolutionary distance

尤平¹，郑哲民². 五种棺头蟋核型的比较研究[J]. , 2001, 44(1): 40-45.

YOU Ping¹, ZHENG Zhe-min². Comparative study of karyotypes in five Loxoblemmus species[J]. , 2001, 44(1): 40-45.

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