THE SPATIAL-DISTRIBUTION OF INFESTATIONS BY TRICHOGRAMMA FEMALES - GENETIC AND EPIGENETIC VARIABILITY

Authors
FLEURY F CHASSAIN C FOUILLET P BOULETREAU M
Citation
F. Fleury et al., THE SPATIAL-DISTRIBUTION OF INFESTATIONS BY TRICHOGRAMMA FEMALES - GENETIC AND EPIGENETIC VARIABILITY, Bulletin de la Societe zoologique de France, 118(2), 1993, pp. 149-157
Citations number
20
Categorie Soggetti
Zoology
Journal title
Bulletin de la Societe zoologique de France → ACNP
ISSN journal
0037962X
Volume
118
Issue
2
Year of publication
1993
Pages
149 - 157
Database
ISI
SICI code
0037-962X(1993)118:2<149:TSOIBT>2.0.ZU;2-0
Abstract
Trichogramma females clearly aggregate their infestations in adjacent host eggs, but significant variations occur among individuals. The tra it is influenced by external factors, the age of females and the avail ability of hosts. Using isofemale fines analysis, the mother-daughter regression method, and artificial selection experiments we have demons trated that individual variations have a genetic basis. The variations among populations may reveal adaptive behavioural differenciations of populations in response to local variations in host abundance and div ersity.