土耳其斯坦东毕吸虫结节变种的染色体C带核型  

STUDIES ON C—BANDED KARYOTYHES OF ORIENTOBILHARZIA TURKESTANICA VAR TUBERCULATA ( OT.T )

作　　者：巴彩凤[1] 

机构地区：[1]锦州医学院寄生虫学教研室

出　　处：《锦州医学院学报》1993年第1期24-26,共3页Journal of Jinzhou Medical College

摘　　要：土耳其斯坦东毕吸虫结节变种的染色体C带核型表明;在雌性虫体,第1号染色体的短臂可见到一异染色质块。第2号性染色体的Z染色体不易出现C带,而W染色体从着丝点部位向长臂方向恒定的出现一大块异染色质。第3号、5号染色体不是恒定的出现C带。第4号染色体的端着丝粒非常明显。第6号、7号染色体在长臂末端分别可以见到一对异染色质块。在雄性虫体,可清楚地见到第2号性染色体为同形性染色体,两条同源染色体都没有异染色质出现。其它染色体的C带同雌性虫体。C-banded karyotyhes of O. T. T reveals that, of female's, a heterochmatic block can be seen in short arm of No 1 chromosomes a large heterochmatie block proceeds from centromete to long arm in W of No. Ⅱ chromosome's, but not in Z of the No. Ⅱ chromosomes; there is not heterochmatic block in No. Ⅲ and No. Ⅴ chromosomes: telocentric of No. Ⅳ chromosomes is clear; we can also see heterochmatic block at the end of long arms of No. Ⅵand No. Ⅶ chromosomes. Neither Wnor Z of No. Ⅱ chromesomes of males possesses the heteromatic bloak, This pair is interpreted as the sex chromosomes. Except for No. Ⅱ in males, the other c-banded karyotyhes are equal to those of females.

关 键 词：染色体 C带核型 土耳其斯坦 东毕吸虫结节 变种 

分 类 号：R383.2[医药卫生—医学寄生虫学]