A HYBRID ZONE BETWEEN 2 SUBSPECIES OF THE GRASSHOPPER CHORTHIPPUS-PARALLELUS ALONG THE PYRENEES - THE WEST END
A HYBRID ZONE BETWEEN 2 SUBSPECIES OF THE GRASSHOPPER CHORTHIPPUS-PARALLELUS ALONG THE PYRENEES - THE WEST END
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DOI：
10.1038/hdy.1994.170
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发表时间：
1994-12-01
期刊：
影响因子：
3.8
通讯作者：
GOSALVEZ, J
中科院分区：
文献类型：
--
作者：
BUNO, I;TORROJA, E;GOSALVEZ, J
蝗虫 Chorthippus parallus (Cp) 有两个不同的亚种，它们沿着比利牛斯山脉相遇，形成一个混合区。由于Cp在海拔2000米以上很少见，因此两个亚种之间的接触必须通过垂直穿越比利牛斯山脉的山谷或山脊的两端进行。两个山谷的接触带已经被详细研究，Col de Portalet（中部比利牛斯山脉）和 Col de la Quillane（东比利牛斯山脉），本文分析了比利牛斯山脉西端接触带的结构。该研究使用通过 C 带和银染色获得的不同染色体标记进行，两者都与性染色体相关。尽管使用这两个标记分析的该接触带的结构与其他山谷中出现的接触带的结构相似，但它要宽得多，并且已经检测到了凹痕形状的一些显着特征。此外，在 Portalet 中检测到的杂交相关性染色体标记在本样本中尚未发现。
The grasshopper Chorthippus parallelus (Cp) has two distinct subspecies which meet along the Pyrenees forming a hybrid zone. As Cp is rarely found above 2000 m, the contact between the two subspecies must occur through valleys crossing the Pyrenees perpendicularly or at both ends of the mountain ridge. The contact zones in two valleys have already been studied in detail, Col de Portalet (Central Pyrenees) and Col de la Quillane (Eastern Pyrenees), and this paper analyses the structure of the contact zone at the western end of the Pyrenees. The study has been carried out using different chromosome markers obtained by C-banding and silver staining, both related to the sex chromosome. Although the structure of this contact zone, analysed using these two markers, is similar to that of the contact zones occurring in other valleys, it is much wider and some remarkable peculiarities in the shapes of the dines have been detected. Additionally, hybrid-related sex chromosome markers detected in Portalet have not been found in the present sample.