Molecular phylogeny of the three paedomorphic mediterranean gobies (Perciformes: Gobiidae).

Molecular phylogeny of the three paedomorphic mediterranean gobies (Perciformes: Gobiidae). Research Abstract Details 

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Molecular phylogeny of the three paedomorphic mediterranean gobies (Perciformes: Gobiidae). Abstract Text:

Massimo Giovannotti,Paola Nisi Cerioni,Mario La Mesa,Vincenzo Caputo,Massimo Giovannotti,Paola Nisi Cerioni,Mario La Mesa,Vincenzo Caputo,

Pelagic gobies are considered of particular zoological interest because the acquisition of a pelagic lifestyle is achieved through the persistence of larval anatomical features. The Mediterranean Sea is inhabited by three goby species (Aphia minuta, Crystallogobius linearis and Pseudaphya ferreri) characterized by paedomorphic traits. Owing to the shared larval morphological features, these species have generally been considered as a monophyletic group. This study aimed at establishing the phylogenetic relationships of these paedomorphic species within the family Gobiidae to ascertain whether the pelagic lifestyle achieved through paedomorphosis is due to an event that took place in a common ancestor or not. For this purpose, we amplified by polymerase chain reaction and sequenced the mitochondrial 12S rDNA (complete sequence) and 16S rDNA (partial sequence) of 15 Mediterranean gobies. The phylogenetic analysis strongly supported the polyphyletic origin of the three paedomorphic gobies, indicating that the heterochronic change leading to the retention of larval features seems to have occurred independently in the ancestors of these species. Thus, the sharing of morphological traits can be considered homoplasious and the classification of these species in the same taxonomic group is rejected on the basis of molecular data. J. Exp. Zool. (Mol. Dev. Evol.) 308B:722-729, 2007. (c) 2007 Wiley-Liss, Inc.

Molecular phylogeny of the three paedomorphic mediterranean gobies (Perciformes: Gobiidae). Publishing Authors By Initials

M Giovannotti,PN Cerioni,M La Mesa,V Caputo,M Giovannotti,PN Cerioni,M La Mesa,V Caputo,

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Molecular phylogeny of the three paedomorphic mediterranean gobies (Perciformes: Gobiidae). Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of experimental zoology. Part B. Molecular

VOLUME: 308

Page Numbers: 722-9

Journal Abbreviation: J. Exp. Zool. B Mol. Dev. Evol

ISSN: 1552-5007

DAY: 15

MONTH: Dec

YEAR: 2007

Molecular phylogeny of the three paedomorphic mediterranean gobies (Perciformes: Gobiidae). Information

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LANGUAGE: eng

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AFFILIATION: Istituto di Biologia e Genetica, Università Politecnica delle Marche, Ancona, Italy.

Country: United States

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MEDLINETA: J Exp Zoolog B Mol Dev Evol

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