四种蝽科昆虫的染色体研究

STUDIES ON THE CHROMOSOMES IN FOUR SPECIES OF FAMILY PENTATOMIDAE (HEMIPTERA:HETEROPTERA)

研究了４ 种中国蝽科昆虫的核型和染色体的减数分裂行为， 并首次在半翅目中采用核型分析软件对第一次减数分裂中期的染色体进行核型分析。结果表明：４ 个种均为２ ｎ ＝ １４ 和 Ｘ Ｙ 性别决定机制； 减数分裂行为比较一致， 但在中期 Ｉ 常染色体和性染色体的排列方式各不相同； 核型分析后的结果表现出了种的特异性，

The karyotypes of four species in Pentatomidae were studied in male germ cells prepared on air dried slides stained with Giemsa.Karyotype analyses using specific software are made for the first time in pentatomid karyotypic study and model karyotype charts are presented. All the 4 species have the typic number of 14 euchromosomes for the family Pentatomidae and an X Y sex chromosomes mechanism. But the arrangements of autosomes and sex chromosomes in metaphase I among the four species have nothing in common with each other,The results of karyotype analyses and model charts also exhibit different features respectively.