ELECTROPHORETIC COMPARISONS OF PHEROMOTYPES OF THE DINGY CUTWORM, FELTIA-JACULIFERA (GN) (LEPIDOPTERA, NOCTUIDAE)

Citation
Rh. Gooding et al., ELECTROPHORETIC COMPARISONS OF PHEROMOTYPES OF THE DINGY CUTWORM, FELTIA-JACULIFERA (GN) (LEPIDOPTERA, NOCTUIDAE), Canadian journal of zoology, 70(1), 1992, pp. 79-86
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Zoology
Journal title
ISSN journal
0008-4301
Volume
70
Issue
1
Year of publication
1992
Pages
79 - 86
Database
ISI
SICI code
0008-4301(1992)70:1<79:ECOPOT>2.0.ZU;2-V
Abstract
Males of four "sibling species" of Feltia jaculifera, characterized by their mate-recognition system (pheromotype), were examined for electr ophoretic variation. Arginine phosphokinase was monomorphic but 14 oth er enzymes and 1 protein were polymorphic in one or more populations. No locus was diagnostic for any pheromotype. Mean heterozygosity per l ocus varied from 21 +/- 7.8% to 26.7 +/- 6.7%, the effective number of alleles per locus varied from 2.19 +/- 0.43 to 3.44 +/- 0.59, and fro m 4 to 11 loci were polymorphic in each population. Phenograms indicat e that pheromotypes A, B, and D are genetically similar, whilst pherom otype C is distinctly different. Allele frequencies, F(ST) values, and the large percentage (34-43%) of private alleles in sympatric populat ions of the pheromotypes indicate a genetic substructuring of the nomi nal species. However, the level of genetic differentiation among phero motypes A, B, and D is well below that characteristic of sibling speci es. Nm values suggest that there is sufficient interbreeding between s ympatric populations of pheromotypes A and B to preclude genetic diffe rentiation due to drift. The evidence indicates that discrete mate-rec ognition systems can be achieved without much allozymic differentiatio n and can be maintained in spite of significant gene flow.