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Phylogenetic Relationships of Sunfishes as Demonstrated by Hybridization
Author(s) -
Hester F. Eugene
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<100:prosad>2.0.co;2
Subject(s) - biology , hatching , phylogenetic tree , interspecific competition , zoology , interspecific hybridization , evolutionary biology , ecology , botany , genetics , hybrid , gene
Five interspecific and 18 intergeneric sunfish crosses were attempted by artificial stripping and fertilization techniques. Hatching success appeared to be related to phylogenetic relationship. In interspecific crosses, hatching success was 64–122% as high as in the parental control cross. In intergeneric crosses it varied from less than 1 to 104% as high as the parental cross, but in only 5 of the 18 intergeneric crosses was hatching success more than 60% as great as in the control cross. Hybridization success indicated a close phylogenetic relationship between Micropterus and Chaenobryttus and between Ambloplites and Pomoxis. Lepomis was somewhat intermediate between the other four genera, possibly indicating a more central phylogenetic relationship than has been reported from morphological studies of this family.