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Genetic Diversity within the Llano Pocket Gopher, Geomys texensis

L. Rex McAliley and Philip D. Sudman
The Southwestern Naturalist
Vol. 50, No. 3 (Sep., 2005), pp. 334-341
Stable URL: http://www.jstor.org/stable/3672477
Page Count: 8
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Genetic Diversity within the Llano Pocket Gopher, Geomys texensis
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Abstract

Geomys texensis, the Llano pocket gopher, consists of 3 subspecies, all identified using classical morphological methods. Enzymatic studies have found little support for the existence of one of these subspecies (G. t. llanensis); however, it continues to be recognized regularly today. To clarify the subspecific status of members within this species, we have sequenced the entire 1,140 base pairs of the cytochrome b gene for 25 individuals collected from throughout the range of the species. Our data refute the designation of 1 of the 3 currently recognized subspecies and allude to the existence of a new, as yet unnamed subspecies. /// La tuza del llano, Geomys texensis, incluye 3 subespecies, todas identificadas usando métodos morfológicos clásicos. Estudios enzimáticos han encontrado poco apoyo para la existencia de una de estas subespecies (G. t. llanensis), sin embargo, ésta continua siendo regularmente reconocida hasta hoy. Para clarificar el estado subespecífico de los miembros de esta especie, hemos secuenciado todas las 1140 bases del citocromo b de 27 individuos colectados a lo largo de todo el rango de la especie. Nuestros datos rechazan la designación de una de las tres subespecies actualmente reconocidas y señalan la existencia de una nueva subespecie aun no descrita.

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