ナミハダニとカンザワハダニの種間交配

DOI 日本農学文献記事索引 Web Site 被引用文献4件

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タイトル別名
  • Inter-specific crosses between Tetranychus urticae Koch and Tetranychus kanzawai Kishida.
  • ナミハダニ ト カンザワハダニ ノ シュカン コウハイ

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抄録

Reproductive compatibility was studied between two closely related mite species of the genus Tetranychus, i.e., T. urticae and T. kanzawai. Copulation was observed between the two species. However in the inter-specific crosses insemination was frequently interrupted and the duration of copulation was much shorter than that between the mates of each species. No adult females were produced from the inter-specific crosses. In addition, there was no significant difference either in the egg hatchability or the survival rate of the immature stages between the offspring from the intra-crosses of each species and the offspring from the females that were doubly inseminated, first with a male of the other species and then with a male of the same species. This finding suggests that the copulation with a male of the other species did not affect successful fertilization with a male of the same species. Thus, there was a complete, premating reproductive isolation between the two species.

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