Systematics, Geographical Distribution and Molecular Phylogenetics of Rhinogobius from Taiwan and Southeastern China (III)

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Project title

Code/計畫編號

NSC94-2311-B019-002

Translated Name/計畫中文名

台灣與中國東南地區之吻蝦虎屬魚類之系統分類、地理分布及分子親緣之研究(III)

Project Coordinator/計畫主持人

I-Shiung Chen

Funding Organization/主管機關

Institute of Marine Biology

Department/Unit

Institute of Marine Biology

Website

https://www.grb.gov.tw/search/planDetail?id=1111911

Year

2005

Start date/計畫起

01-08-2005

Expected Completion/計畫迄

01-07-2006

Bugetid/研究經費

978千元

ResearchField/研究領域

生物科學

本研究計劃針對台灣與中國東南地區流域所產的吻鰕虎屬 (Rhinogobius) 魚類以外部形態特徵進行該流域吻鰕虎屬魚類的分類，地理分布探討，並輔以 DNA 分子資訊，以建立該流域吻鰕虎屬魚類的分子親緣關係。在分子親緣方面，本文選用mtDNA D-loop 序列片段作為研究材料；在外部形態方面，本文根據測量形質、計數形質、頭部感覺系統及色斑類型形質資料，並比對中國南方地區所有吻鰕虎屬之有效種，以進行形態分類，並釐清台灣與中國東南地區流域吻鰕虎屬魚類的分類地位與分布現況。已可確認的世界新種達 12 種以上。根據 mtDNA 分子親緣研究，以鄰接距離分析法、最大簡約分析法及最大似然分析法所建構出的 3 個類緣關係樹狀圖呈現出一致的趨勢，且此趨勢符合根據外部形態特徵所得到的分類結果，中國大陸種類，以降海小卵型自成單源體系，最複雜的類群，則為歧異度最高的陸封大卵型魚類，亦分別在各相關支流水係獨立的種化，形成複雜的種化關係。相關學術成果，一部份成果已發表十篇以上之 SCI 論文，並有少部份成果，已陸續於學術期刊投稿發表中。This research project is focused on the morphological, geographical and molecular approach for systematics, taxonomic revision and evolutionary history of freshwater gboiid genus, Rhinogobius Gill, 1859 from southeastern China and Taiwan together. The taxonomic research revealed as at least 12 undescribed species should be turned up for new to science. The geographical distribution of those group have been investigated further detail by the project. As the molecular approach for phylogenetic perspective inferred from mitochondrial D-loop sequences, the amphidromous group with small egg size have been considered as monophyletic and the most complicate non-diadromous species with large egg size which have been detected with the large genetic differentiation among species. The river system along with the different evolutionary history for current known species group. There are at least 10 SCI paper have been published and in press via the 3 year’s support of current project, and other research credit will be submit in very short time for achieving the goal for leading Aquatic Biodiversity for fishes in our region.

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Systematics, Geographical Distribution and Molecular Phylogenetics of Rhinogobius from Taiwan and Southeastern China (III)

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