Biochemical systematics of the cyprinid genus Notropis—I. The subgenus Luxilus |
| |
Authors: | Donald G. Buth |
| |
Affiliation: | Department of Ecology, Ethology and Evolution, University of Illinois, Urbana, IL 61801, USA |
| |
Abstract: | Population samples for all taxa in the subgenus Luxilus of Notropis were genetically analysed by vertical starch gel electrophoresis to detect protein variability. A total of 38 alleles were resolved at 17 presumptive loci. Protein systems examined included adenylate kinase, aspartate aminotransferase, creatine kinase, calcium-binding proteins, general protein, glucosephosphate isomerase, glycerol-3-phosphate dehydrogenase, lactate dehydrogenase, malate dehydrogenase, phosphoglucomutase, and superoxide dismutase. A phylogenetic analysis of the molecular data allows the recognition of four species-groups: (a) the cornutus group including Notropis albeolus, N. chrysocephalus chrysocephalus, N. c. isolepis, and N. cornutus: (b) the zonatus group including N. pilsbryi and N. zonatus; (c) the coccogenis group including N. coccogenis and N. zonistius; and (d) the cerasinus group comprised of N. cerasinus alone. Notropis cerasinus exhibits little genetic affinity for the cornutus species-group and is most closely related to the coccogenis species-group. Both phenetic and phylogenetic analyses deny specific status to the isolepis form. A further analysis of isozyme variability at the Pgm-A and Gpi-A loci may clarify the relationship between N. cornutus and N. chrysocephalus. |
| |
Keywords: | Cyprinidae Cypriniformes isozymes starch gel electrophoresis polymorphism chemosystematics |
本文献已被 ScienceDirect 等数据库收录! |
|