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Comparison of chromosomal banding pattern in four species of Catantopidae (Orthoptera)
Author(s): 
Pages: 268-275
Year: Issue:  3
Journal: ACTA ENTOMOLOGICA SINICA

Keyword:  染色体带型小蹦蝗属无翅蝗属;
Abstract: 应用染色体C带及银染核仁组成区定位分析方法对斑腿蝗科4种昆虫,即小蹦蝗属2种:峨眉小蹦蝗Pedopodisma emeiensis和秦岭小蹦蝗P.无翅蝗属2种:小无翅蝗Zubovskia和柯氏无翅蝗Z. koeppeni进行了研究.结果表明:4种蝗虫染色体数目(2n♂=21,XO)一致,染色体分组型式相近.从染色体带型特征来看,属内具有共性,构成标志性带纹特点,例如,小蹦蝗属M8染色体上具有端带;无翅蝗属X染色体具有特殊带纹.银染核仁组成区定位在两属各有特点,小蹦蝗属位于第8号染色体端部区域;无翅蝗属位于X染色体端部区域.除上述属内共性之外,各物种C带带纹又存在明显差异,其中峨眉小蹦蝗带型极为特殊.文中还对上述4种蝗虫带型结构特征及其进化意义作了讨论.
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