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An Analysis of a Natural Hybrid Swarm by Means Chromosome Morphology
Author(s) -
Setzer Paulette Y.
Publication year - 1970
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1970)99<139:aaoanh>2.0.co;2
Subject(s) - swarm behaviour , morphology (biology) , natural (archaeology) , biology , zoology , ecology , paleontology
The sibling species Fundulus olivaceus and Fundulus notatus have karyotypes comprised of 48 and 40 chromosomes, respectively. The karyotype of F. notatus is probably derived from one similar to that of F. olivaceus by a Robertsonian change involving centric fusion. A hybrid swarm between F. olivaceus and F. notatus was identified and analyzed using chromosome numbers to distinguish hybrid and backcross individuals.