Genetic relationships and reproductive-isolation mechanisms among the Fejervarya limnocharis complex from Indonesia (Java']Java) and other Asian countries

被引:18
作者
Djong, Tjong Hon
Islam, Mohammed Mafizul
Nishioka, Midori
Matsui, Masafumi
Ota, Hidetoshi
Kuramoto, Mitsuru
Khan, Md. Mukhlesur Rahman
Alam, Mohammad Shafiqul
Anslem, De Silva
Khonsue, Wichase
Sumida, Masayuki [1 ]
机构
[1] Hiroshima Univ, Grad Sch Sci, Inst Amphibian Biol, Higashihiroshima 7398526, Japan
[2] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Kyoto 6068501, Japan
[3] Univ Ryukyus, Trop Biosphere Res Ctr, Nishihara, Okinawa 9030213, Japan
[4] Bangladesh Agr Univ, Mymensingh 2202, Bangladesh
[5] Univ Peradeniya, Fac Med, Peradeniya, Sri Lanka
[6] Chulalongkorn Univ, Fac Sci, Dept Biol, Bangkok 10330, Thailand
[7] Andalas Univ, Dept Biol, Fac Sci, Padang 25136, W Sumatra, Indonesia
关键词
reproductive isolation; Fejervarya limnocharis; Asia; Fejervarya iskandari; genetic relationship;
D O I
10.2108/zsj.24.360
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
In order to elucidate the genetic relationships and reproductive-isolation mechanisms among the Fejervarya limnocharis complex from Indonesia and other Asian countries, allozyme analyses and crossing experiments were carried out using 208 individuals from 21 localities in eight Asian countries. The allozyme analyses revealed that 17 enzymes examined were controlled by genes at 27 loci, and that 79 phenotypes were produced by 5.2 alleles on average. The two species recognized in F limnocharis sensu lato from Southeast Asia (Le., F limnocharis sensu stricto and F. iskandart) were found to occur sympatrically at three localities (Bogor, Cianjur and Malingping), all on Java, Indonesia. Fejervaya iskandari was dominant at each of these localities and showed substantial geographic genetic variation. Laboratory-produced hybrids between E limnocharis and F iskandari from Java became underdeveloped and died at the tadpole stage, suggesting that these species are completely isolated by hybrid inviability. Hybrids between topotypic E limnocharis and the Malaysian and Japanese conspecific populations developed normally to metamorphosis. Likewise, hybrids between topotypic E iskandari and the Thailand and Bangladesh conspecific populations also showed normal viability throughout larval development. The present allozyme analyses and crossing experiments strongly suggested the presence of two distinct forms, the large type and the small type, in the E limnocharis complex from Asia, and further subdivision of the large type into the F. timnocharis assemblage and the E iskandari assemblage. The small type was found in samples from India, Thailand, Bangladesh and Sri Lanka, and included at least three different species. The sample from Pilok, Thailand, was considered to represent an undescribed species.
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页码:360 / 375
页数:16
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