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Karyotypic analysis of the gobiid fish genus Quietula Jordan and Evermann
Author(s) -
Cook Peter C.
Publication year - 1978
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1978.tb04162.x
Subject(s) - karyotype , biology , centromere , genus , chromosome , zoology , fish <actinopterygii> , chromosome number , genetics , fishery , gene
The karyotypes of the two species of the gobiid fish genus Quietula, Q. y‐cauda (Jenkins & Evermann) and Q. guaymasiae (Jenkins & Evermann), are reported for the first time. The karyotypes contained equal numbers of chromosomes (2 n =42) but differed in chromosome morphology. Quietula y‐cauda has 42 acrocentric chromosomes. Quietula guaymasiae has six metacentric, four submetacentric, and 32 acrocentric chromosomes. It is suggested the karyotype of Q. guaymasiae might have been derived from that of Q. y‐cauda. In addition, from comparison of the species' karyotypes of the genera Quietula and Gillichthys , it is possible the karyotype of Q. y‐cauda might have been derived from that of Gillichthys mirabilis.