Genetic characterization of the peptidases of Polistes versicolor (Hymenoptera: Vespidae)
Braz. j. biol
; 63(2): 291-299, May 2003. ilus, tab, graf
Article
in English
| LILACS
| ID: lil-343824
Responsible library:
BR1.1
RESUMO
Starch gel electrophoresis with L-leucyl-beta-naphthylamide as substrate revealed five aminopeptidases in extracts of Polistes versicolor. These enzymes are presumably products of five structural gene loci. All but Lap aminopeptidases exhibited differential distribution in the developmental stages and in the tissues. Five dipeptidases were revealed with different dipeptides. These enzymes exhibited significant differences in their substrate preferences, but a more homogeneous distribution throughout ontogenetic developmental stages than did aminopeptidases. Electrophoretic variants of Lap4 and PepA² were detected and although a low intralocus heterozygosity was found due to the low frequency of these variants, phenotypical segregation observed at these loci in pupae extracts of some colonies points to the occurrence of more than one egg-laying female. Otherwise, the detection of Lap4 allozyme restricted to nests of one area suggests low dispersion ability of the adults of Polistes versicolor
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Wasps
/
Aminopeptidases
Limits:
Animals
Language:
English
Journal:
Braz. j. biol
Journal subject:
Biology
Year:
2003
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Säo Carlos/BR