Cytotaxonomic Study of Gila Trout, Salmo gilae

Abstract
Gila trout, Salmo gilae, has a diploid chromosome complement of 2n = 56 consisting of 49 metacentric and submetacentric chromosomes and 7 acrocentric or telocentric chromosomes. Karyotypes of this and other species of western North American trouts of the genus Salmo suggest that chromosomal modifications are correlated to speciation in this genus. Key words: salmonidae, Salmo gilae, karyotype, chromosome, speciation