|SREL Reprint #0528|
Genetics of Sunfish IV.
C. Avise, Donald O. Straney and Michael H. Smith
We have examined electrophoretic variation in
proteins encoded by 11-14 loci in species representing all nine genera of the
Centrarchidae. A dendrogram based
on allozyme information is compared to postulated relationships of sunfish
genera based on general and specific morphologies, and on hybridizing
propensity. The allozyme
information correlates most strongly with that derived from a very detailed
study of the acoustico-lateralis system by Branson and Moore (1962).
Similarities between the two sets of data are observed 1) in the
clustering together of species of Lepomis; 2) in the clustering of lepomis
with Micropterus; 3) in the placement of Acantharchus with Archoplites;
and 4) in the very distant relationship of Elassoma to the other
centrarchid genera. The levels of
genetic similarity between centrarchid genera are compared to previously
published levels of similarity between congeneric species of Lepomis,
subspecies of Lepomis macrochirus, and geographic populations
within the subspecies of L. m. marcrochirus and L. m.
purpurescents. Mean levels of
genetic similarity (S) are as follows: between genera, S = 0.29; between
congeneric species, S = 0.53; between subspecies of Lepomis macrochirus,
S = 0.85; between geographic populations, S = 0.97.
SREL Reprint #0528
Avise, J.C., D.O. Straney, and M.H. Smith. 1977.
Biochemical genetics of sunfish. IV. Relationships of centrarchid
genera. Copeia 1977:250-258.