| Literature DB >> 12832823 |
Ryo Ishibashi1, Kennichi Ookubo, Mina Aoki, Minako Utaki, Akira Komaru, Kouichi Kawamura.
Abstract
Two shell color types of the exotic bivalve Corbicula fluminea were collected in Kyoto city, Japan. DNA microfluorometry revealed that both types were diploids with non-reductional spermatozoa. Maternal chromosomes were found to be extruded as two polar bodies at the first meiosis, and the second meiosis could not be observed. Only the male pronucleus was present in the egg cytoplasm and became metaphase chromosomes at the first mitosis. The present study indicates that the diploid C. fluminea in Japan has the same mode of androgenetic reproduction as the triploid C. leana.Entities:
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Year: 2003 PMID： 12832823 DOI： 10.2108/zsj.20.727
Source DB: PubMed Journal: Zoolog Sci ISSN： 0289-0003 Impact factor: 0.931