文章基本信息

标题：Análisis comparativo morfológico y genético de diferentes poblaciones de Zoogoneticus quitzeoensis (Cyprinodontiformes:Goodeidae) del Centro de México, con la descripción de una especie nueva
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作者：IGNACIO DOADRIO ; OMAR DOMÍNGUEZ DOMÍNGUEZ ; RODOLFO PÉREZ RODRÍGUEZ 等
期刊名称：Revista Mexicana de Biodiversidad
印刷版ISSN：1870-3453
出版年度：2009
卷号：79
期号：002
出版社：Instituto de Biología
摘要：A GENETIC AND MORPHOMETRIC STUDY OF POPULATIONS OF ZOOGONETICUS QUITZEOENSIS (BEAN, 1898) FROM THE LERMA AND AMECA BASINS AND CUITZEO, ZACAPU AND CHAPALA LAKES IN CENTRAL MEXICO WAS CONDUCTED. FOR THE GENETIC ANALYSIS, 7 POPULATIONS WERE SAMPLED AND 2 MONOPHYLETIC GROUPS WERE IDENTIFIED WITH A GENETIC DIFFERENCE OF DHKY= 3.4% (3-3.8%), ONE BEING THE POPULATIONS FROM THE LOWER LERMA BASIN, AMECA AND CHAPALA LAKE, AND THE OTHER POPULATIONS FROM ZACAPU AND CUITZEO LAKES. FOR THE MORPHOMETRIC ANALYSIS, 4 POPULATIONS WERE SAMPLED AND 2 MORPHOTYPES IDENTIFIED, 1 FROM LA LUZ SPRING IN THE LOWER LERMA BASIN AND THE OTHER FROM ZACAPU AND CUITZEO LAKES DRAINAGES. USING THESE 2 SOURCES OF EVIDENCE, THE POPULATION FROM LA LUZ IS REGARDED AS A NEW SPECIES ZOOGONETICUS PURHEPECHUS SP. NOV. THE NEW SPECIES DIFFERS FROM ITS SISTER SPECIES ZOOGONETICUS QUITZEOENSIS IN HAVING A SHORTER PREORBITAL DISTANCE (PROL/SL X = 0.056, SD = 0.01), LONGER DORSAL FIN BASE LENGTH (DFL/SL X = 0.18, SD = 0.03) AND 13-14 RAYS IN THE DORSAL FIN. THE NEW SPECIES DIFFERS FROM BOTH MEMBERS OF ITS SISTER TAXON (ZOOGONETICUS TEQUILA AND Z. QUITZEOENSIS) AT 10 FIXED NUCLEOTIDE POSITIONS IN THE CYTOCHROME B GENE. WE HAVE DETERMINED THAT ZOOGONETICUS PURHEPECHUS IS DISTRIBUTED IN THE LOWER LERMA, UPPER AMECA, ARMERIA AND SANTIAGO RIVER BASINS, AND CHAPALA LAKE. THIS NEW SPECIES SHOULD BE CONSIDERED ENDANGERED OF EXTINCTION ACCORDING TO THE CRITERIA OF THE MER (AII,BI,CI,DI) AND FOR THE IUCN (A-1,B,C,E).
关键词：Zoogoneticus;cytochrome b;new species;Mesa Central;Mexico;morphometry;Zoogoneticus;cytochrome b;Mesa Central;México;morfometría