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A revised study of the chromosomes of twenty-four species of Japanese weevils (Coleoptera:Curculionidae)

✍ Scribed by Y. Takenouchi


Publisher
Springer Netherlands
Year
1973
Tongue
English
Weight
468 KB
Volume
44
Category
Article
ISSN
0016-6707

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✦ Synopsis


The chromosomes of 24 Japanese weevils were reinvestigated in the male germ line using squash preparations. The results are summarized in Table 1. All species have an Xyp sex-determining mechanism.


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A study of polyploidy in races of Japane
✍ Y. Takenouchi πŸ“‚ Article πŸ“… 1976 πŸ› Springer Netherlands 🌐 English βš– 337 KB

The chromosomes of two Japanese weevils, Blosyrus japonicus Sharp and Callirhopalus (= Pseudocneorhinus) obesusRoelofs, were studied.The former consists of four races: one 2n and bisexual (= Blosyrusfalcatus Faust) and three parthenogenetic -4n, 5n, and 6n. In general the races are allopatric. The l