中国钩瘿蚊属分类研究(双翅目,瘿蚊科)

记述了中国鼓瘿蚊亚科钩瘿蚊属7种,其中2种:长角钩瘿蚊C.longicornis sp.nov.(模式产地:陕西凤县)、背折钩瘿蚊C.retrorsa sp.nov.(模式产地:云南屏边)为科学上的新种,另外5种:美丽钩瘿蚊C.formosa(Bremi)(分布:湖南、云南、吉林),日本钩瘿蚊C.mpponensis Yukawa(分布: 甘肃、四川、湖北),尖瓣钩瘿蚊C.hamata (Felt) (分布:湖南、贵州),狭眼钩瘿蚊C.neueitasis (Zetterstedt)(分布:甘肃)和锯齿钩瘿蚊C.serrata Yukawa (分布:陕西、甘肃、福建)为中国新纪录种.编制了钩瘿蚊属中国已知种种类检索表.模式标本保存于南开大学生物系昆虫标本室.     

雀形目八种鸟核型的比较研究A

本文分析了雀形目8种鸟的核型,并与已报道的资料进行了比较。结果表明, 近缘种间及属间核型差异不大,从而支持了鸟类核型在进化过程中有较强保守性这一观点。 Abstract:The karyotypes of 8 species of Passerine birds were studied and compared with the data reported before.The result showed that the difference of karyotypes between relative species of genera is not obvious,thus providing the hypothesis that bird karyotype is exceedingly conservative in the course of evolution.     

瘿蚊科中国一新纪录属种记述(双翅目,瘿蚊科)

报道了瘿蚊科鼓瘿蚊亚科中国1新纪录属,即独瘿蚊属Asynapta Loew,1850及其中国1新纪录种,即戈氏独瘿蚊Asynapta groverae Jiang et Bu,nom nov.(山东:青岛).本种模式产地在印度,原置于Dicerura属,即Dicerura indi-ca Grover,后由定名人转入Cryptoneurus属,本文将其转入Asynapta属,是为新组合;但转入后,本种与Asynapta属中的原有种同名,成为一个次后同名,因此为本种命一新名.文中重新描述并图示该种的特征,补充和修正了原始描述中的不足.     

中国扇瘿蚊属六新种(双翅目,瘿蚊科)

报道了双翅目瘿蚊科中国新纪录属:扇瘿蚊属Rhipidoxylomyia Mamaev 6新种,提出了1新组合:Rhipidoxylomyia concava(Yukawa),comb.nov,编制了扇瘿蚊属世界种类检索表.模式标本保存于南开大学生物系.     

麻雀核型研究的新发现

本文对分布于牡丹江地区的麻雀（Passer montanus montanus Linnaeus）（指名亚种）进行了核型、C带和G带研究,发现了麻雀同一亚种内具有4种核型,即2n=78（正常）、2n=77、2n=76和2n=78（异常）。经分析比较认为,4种核型中,2n=78（正常）为基础核型,而其他3种核型是在此基础上由微小染色体发生过罗伯逊易位（Robertsonian translocation）形成的。从而为罗伯逊易位在鸟类核型进化中起重要作用这一推测提供了直接的证据。Abstract: The karyotype .C-band and G-band of the tree sparrow (Passer montanus montanus L.) in Mudanjiang area were studied, and 4 karyotypes were discovered, they are 2n=78 (normal), 2n=77,2n=76 and 2n=78(unusual). By analysis and comparison it can be considered that the 2n=78(normal) is a basic karyotype in the 4 karyotypes, and the others are formed by Robertsonina translocation between microchromosomes on this base, thus providing the inference that the Robertsonian translocation plays an important role in karyotype evolution of birds with direct evidence.     

家燕与金腰燕染色体的比较研究

本文对家燕和金腰燕的核型、C带和Ag-NORs带进行了比较研究。结果表明,两者的核型基本一致。核型公式:2n=80=2M+4ST+zMwSM+2M+2ST+2SM+8 T+2M+56mT/D。但两者在染色体的相对长度、W染色体大小、G带带型、A g-NORs的数目和分布均存在着差异。文中在家燕No.1、7、W染色体和金腰燕No.1、 6、7染色体的形态划分,金腰燕W染色体的确定及其染色体数目等方面,均与卞小庄、李庆伟的结果不同。 Abstract:A comparative study on karyotype and C-band and Ag-NORs of house swallow and red-rumped swallow has been made.The result shows that the karyotype of them are similar,and their karyotypical formulae is 2n=80=2M+4ST+zMwSM+2M+2ST+8T+2M+56mT/D.But they are different in the relative length of chromosomes,the size of W chromosome,C-band patterns and the number and distribution of Ag-NORs.The chromosomes,the size of W chromosome,C-band patterns and the number and distribution of Ag-NORs.THE result in this paper is different from that of Mr.Bian and Mr.Li in the types of No.1,7,W chromosomes of house swallow and No.1,6,7 chromosomes of red-rumped swallow and the determination of W chromosome and diploid number of red-rumped swallow.