Interrelationships of the freshwater clams Corbicula leana Prime, 1864. and C. fluminea (Mueller, 1774) distributed in Japan inferred from shell type and mitochondrial DNA Cyt b region

DOI JASI Web Site 9 Citations 38 References

Bibliographic Information

Other Title
  • ミトコンドリア　ＤＮＡ　のチトクローム　ｂ　塩基配列および形態から見た日本に分布するマシジミ，タイワンシジミの類縁関係
  • ミトコンドリア DNA ノ チトクローム b エンキ ハイレツ オヨビ ケイタイ カラ ミタ ニホン ニ ブンプ スル マシジミ タイワンシジミ ノ ルイエン カンケイ
  • Interrelationships of the freshwater clams Corbicula leana Prime, 1864. and C. fluminea (Müller, 1774) distributed in Japan inferred from shell type and mitochondrial DNA Cyt b region

Search this article

Abstract

  The freshwater clams, Corbicula leana Prime, 1864. and C. fluminea (Müller, 1774) are native and exotic androgenetic hermaphrodites in Japan, respectively. Since the early 1980s, C. fluminea has been repeatedly introduced from East Asia throughout Japan. To elucidate the relationship between the two species, we examined their phenotypes, ploidy, and nucleotide sequence of mitochondrial DNA (mtDNA) cytochrome b (Cyt b) gene. Although the clams were classified into three phenotypes (C. leana, and green and yellow types in C. fluminea) by shell morphology, both diploid and triploid were observed in all phenotypes. In the phylogenetic tree based on the Cyt b sequences, two major clades were recognized, which did not correspond to phenotype or ploidy. In addition, the same dominant haplotype was commonly observed in the three phenotypes. These results unambiguously indicate that C. leana and C. fluminea are genetically indistinguishable, casting doubt on the validity of their taxonomic status.<br>

Journal

Citations (9)*help

See more

References(38)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top