Joint Segregation of Allozymes in Catfish Genetic Crosses: Designation ofIctalurus punctatusLinkage Group I
- 1 January 1994
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 123 (1) , 22-27
- https://doi.org/10.1577/1548-8659(1994)123<0022:jsoaic>2.3.co;2
Abstract
Polymorphic isozymes visualized by starch gel electrophoresis and histochemical staining were examined in parents and 1,000 progeny of 24 single-pair matings of channel catfish Ictalurus punctatus and three interspecific crosses of channel catfish × blue catfish I. furcatus. Polymorphic loci that could be scored from fin tissue included aconitate hydratase (mAH*), glucose-6-phosphate isomerase (GPI-B*), glutathione reductase (GR*), phosphoglucomutase (PGM*), and UDPglucose-hexose-1-phosphate uridylyltransferase (UGHUT-2*). Inheritance of observed electrophoretic variation was consistent with Mendelian segregation of codominant alleles in progeny selected randomly from the individual crosses. Although mAH*, GPI-B*, PGM*, and UGHUT-2* appeared to assort independently within the limits of the data, strong evidence for linkage of GR* and PGM* was obtained (19.7% recombination, P ≤ 0.001 for data combined from two informative pedigrees); this linkage was designated Ictalurus punctatus linkage group I....Keywords
This publication has 0 references indexed in Scilit: