Mitochondrial genomics of flatfishes: Comprehensive molecular phylogeny and genome structural evolution

2014 Fiscal Year Final Research Report

• Project/Area Number: 24770082
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Biodiversity/Systematics
• Research Institution: National Museum of Nature and Science, Tokyo
• Principal Investigator: SATOH Takashi 独立行政法人国立科学博物館, 標本資料センター, 特定非常勤研究員 (60436516)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: カレイ目 / ミトコンドリアゲノム / 分子系統 / 分子進化 / 遺伝子配置

Outline of Final Research Achievements

Using whole mitochondrial genome sequences, we aimed at construction of a robust phylogenetic tree which covered all major lineages of flatfishes. Finally, new data of 100 flatfishes were determined, and a comprehensive phylogenetic tree on a total of 180 species including outgroups and existing data was constructed. As a result, monophyly of the flatfish was supported with a weak value, and monophyly of 2 suborders and 3 superfamilies which accorded with the latest classification system was also supported. The Paralichthidae (Large-tooth flounders) was clealy shown to be paraphyletic group divided into two groups. Furthermore, 8 patterns of gene rearrangements were found in 4 families of flatfishes.

Free Research Field

分子系統進化