Karyotype of the yellow-bellied sea snake, Pelamis platurus

 

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Detalles Bibliográficos
Autores: Gutiérrez, José María, Bolaños Herrera, Róger
Formato: artículo original
Fecha de Publicación:1980
Descripción:In this paper we describe the karyotype of the yellow-bellied sea snake, Pelamis platurus from Costa Rica. The diploid number is 38 chromosomes, with 20 macrochromosomes and 18 microchromosomes. The pairs 1 and 2 are metacentrics, pair 3 is subtelocentric and pairs from 4 to 9 have the centromere in a terminal position. Females have a pair of slightly heteromorphic chromosomes identified as sex chromosomes Z and W; both are metacentrics but have different centromeric index and W is slightly smaller.The pattern of heteromorphism in sex chromosomes and the secondary constriction present in some sea snake karyotypes could be useful parameters in determining evolutionary relationships between the sea snakes.
País:Kérwá
Institución:Universidad de Costa Rica
Repositorio:Kérwá
OAI Identifier:oai:kerwa.ucr.ac.cr:10669/29113
Acceso en línea:https://hdl.handle.net/10669/29113
Palabra clave:Yellow-Bellied Sea Snake
Vertebrates
Costa Rica
Area de Conservación Tempisque
Chromosome Number