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タイトル: Evolutionary Relationships and Reproductive Isolating Mechanisms in the Rice Frog (Fejervarya limnocharis) Species Complex from Sri Lanka, Thailand, Taiwan and Japan, Inferred from mtDNA Gene Sequences, Allozymes, and Crossing Experiments
著者: Sumida, Masayuki
Kotaki, Manabu
Islam, Mohammed Mafizul
Djong, Tjong Hon
Igawa, Takeshi
Kondo, Yasuyuki
Matsui, Masafumi  KAKEN_id
De Silva, Anslem
Khonsue, Wichase
Nishioka, Midori
著者名の別形: 松井, 正文
キーワード: speciation
reproductive isolation
genetic divergence
molecular phylogeny
Fejervarya
Asia
発行日: Jun-2007
出版者: Zoological Society of Japan
誌名: Zoological Science
巻: 24
号: 6
開始ページ: 547
終了ページ: 562
抄録: The rice frog (Fejervarya limnocharis) species complex is widely distributed, from India to Japan, and most prevalently in Southeast Asia. Conspicuous morphological variation has been reported for this species complex throughout its distribution range. In the present study, we used mtDNA gene sequence and allozyme analyses to infer evolutionary affinities within this species complex using eight populations (Sri Lanka; Bangkok and Ranong in Thailand; Taiwan; and Hiroshima, Okinawa, Ishigaki and Iriomote in Japan). We also conducted crossing experiments among four populations from Japan, Thailand, and Sri Lanka in order to find out more about the reproductive isolating mechanisms that might exist among the East, Southeast, and South Asian populations of this species complex. The crossing experiments revealed that the Sri Lanka population is reproductively isolated from the Hiroshima, Bangkok, and Ranong populations by complete hybrid inviability, and that the Bangkok population may be reproductively isolated from the Hiroshima population by partial hybrid inviability. Thus, it is not unreasonable to regard the Sri Lanka population as a species separated from F. limnocharis. The mtDNA and allozyme data showed that the Ranong population is most closely related to the Bangkok population in nuclear genome, but more similar to the Okinawa and Taiwan populations in mtDNA genome. The present, preliminary survey may raise questions about the species status of these particular populations and also about the nature of the biological species concept.
著作権等: (c) 日本動物学会 / Zoological Society of Japan
URI: http://hdl.handle.net/2433/85325
DOI(出版社版): 10.2108/zsj.24.547
出現コレクション:Zoological Science

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