東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

A phylogenetic analysis of the Asian...

Ng, Heok Hee.

FindBook

Google Book

Amazon

博客來

A phylogenetic analysis of the Asian catfish family Sisoridae (Teleostei: Siluriformes), and the evolution of epidermal characters in the group.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	A phylogenetic analysis of the Asian catfish family Sisoridae (Teleostei: Siluriformes), and the evolution of epidermal characters in the group./
作者:	Ng, Heok Hee.
面頁冊數:	428 p.
附註:	Adviser: William L. Fink.
Contained By:	Dissertation Abstracts International67-10B.
標題:	Biology, Zoology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3238043
ISBN:	9780542922060

A phylogenetic analysis of the Asian catfish family Sisoridae (Teleostei: Siluriformes), and the evolution of epidermal characters in the group.
Ng, Heok Hee.

A phylogenetic analysis of the Asian catfish family Sisoridae (Teleostei: Siluriformes), and the evolution of epidermal characters in the group. - 428 p.

Adviser: William L. Fink.

Thesis (Ph.D.)--University of Michigan, 2006.

The phylogenetic relationships of the Asian hillstream catfish family Sisoridae are examined in this study, using a combination of morphological, and mitochondrial and nuclear gene sequence data. The composition of the family is also examined and the hypothesis that the Asian Erethistidae (previously considered part of the Sisoridae) is the sister group of the Neotropical catfish family Aspredinidae is tested with morphological and molecular data. The results of this study indicate that the clade containing the members currently assigned to the Erethistidae is nested within the Sisoridae. The Sisoridae is therefore redefined to include the Erethistidae. The Sisoridae is divided into two clades: the Glyptosterninae and the Sisorinae, with the Sisorinae divided into three subclades in an unresolved trichotomy: the Bagariini, Erethistini and Sisorini. A novel sister group relationship between Bagarius and Glyptothorax (both comprising the Bagariini) was recovered, and some sisorid taxa previously thought to be monophyletic, e.g. Hara, were not recovered as such. A divergence time estimate analysis carried out on some nodes within the Sisoridae suggests that much of the speciation within Sundaic Southeast Asian Glyptothorax predates the Pleistocene. While this is expected for elements of the ichthyofauna occurring in the upper reaches of river drainages in the region and expected to undergo the most isolation, the hypothesis that sea level changes during the Pleistocene were the major vicariant events that led to speciation has also been frequently extended to include species occurring in the middle and upper reaches of rivers in existing literature. The results of this study indicate otherwise, and suggest that more intensive studies on the historical biogeography of the upriver elements of the ichthyofauna of river drainages in Southeast Asia is deserving of further study. Some epidermal characters in the Sisoridae, viz. the tubercles on the sides of the body and the epidermal structures of the thoracic region, were examined using both light and scanning electron microscopy in an attempt to elucidate their evolution and phylogenetic significance in the light of the phylogenetic hypothesis obtained. The morphology of these structures appear to be highly influenced by hydrodynamic regimes and the apparent homoplasy observed in them limits their use as phylogenetically. The taxonomic problems associated with the diagnosability of sisorid taxa is discussed and highlighted with the description of a new species of Erethistoides.

ISBN: 9780542922060Subjects--Topical Terms:

1018632
Biology, Zoology.

A phylogenetic analysis of the Asian catfish family Sisoridae (Teleostei: Siluriformes), and the evolution of epidermal characters in the group.
LDR:03495nam 2200265 a 45 001 967069
005 20110915
008 110915s2006 eng d
020 $a 9780542922060
035 $a (UnM)AAI3238043
035 $a AAI3238043
040 $a UnM $c UnM
100 1 $a Ng, Heok Hee. $3 1290956
245 1 2 $a A phylogenetic analysis of the Asian catfish family Sisoridae (Teleostei: Siluriformes), and the evolution of epidermal characters in the group.
300 $a 428 p.
500 $a Adviser: William L. Fink.
500 $a Source: Dissertation Abstracts International, Volume: 67-10, Section: B, page: 5605.
502 $a Thesis (Ph.D.)--University of Michigan, 2006.
520 $a The phylogenetic relationships of the Asian hillstream catfish family Sisoridae are examined in this study, using a combination of morphological, and mitochondrial and nuclear gene sequence data. The composition of the family is also examined and the hypothesis that the Asian Erethistidae (previously considered part of the Sisoridae) is the sister group of the Neotropical catfish family Aspredinidae is tested with morphological and molecular data. The results of this study indicate that the clade containing the members currently assigned to the Erethistidae is nested within the Sisoridae. The Sisoridae is therefore redefined to include the Erethistidae. The Sisoridae is divided into two clades: the Glyptosterninae and the Sisorinae, with the Sisorinae divided into three subclades in an unresolved trichotomy: the Bagariini, Erethistini and Sisorini. A novel sister group relationship between Bagarius and Glyptothorax (both comprising the Bagariini) was recovered, and some sisorid taxa previously thought to be monophyletic, e.g. Hara, were not recovered as such. A divergence time estimate analysis carried out on some nodes within the Sisoridae suggests that much of the speciation within Sundaic Southeast Asian Glyptothorax predates the Pleistocene. While this is expected for elements of the ichthyofauna occurring in the upper reaches of river drainages in the region and expected to undergo the most isolation, the hypothesis that sea level changes during the Pleistocene were the major vicariant events that led to speciation has also been frequently extended to include species occurring in the middle and upper reaches of rivers in existing literature. The results of this study indicate otherwise, and suggest that more intensive studies on the historical biogeography of the upriver elements of the ichthyofauna of river drainages in Southeast Asia is deserving of further study. Some epidermal characters in the Sisoridae, viz. the tubercles on the sides of the body and the epidermal structures of the thoracic region, were examined using both light and scanning electron microscopy in an attempt to elucidate their evolution and phylogenetic significance in the light of the phylogenetic hypothesis obtained. The morphology of these structures appear to be highly influenced by hydrodynamic regimes and the apparent homoplasy observed in them limits their use as phylogenetically. The taxonomic problems associated with the diagnosability of sisorid taxa is discussed and highlighted with the description of a new species of Erethistoides.
590 $a School code: 0127.
650 4 $a Biology, Zoology. $3 1018632
690 $a 0472
710 2 0 $a University of Michigan. $3 777416
773 0 $t Dissertation Abstracts International $g 67-10B.
790 $a 0127
790 1 0 $a Fink, William L., $e advisor
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3238043