QUANTITATIVE GENETICS OF MULTIVARIATE MORPHOMETRIC VARIATION IN THE NEOTROPICAL STINGLESS BEE, SCAPTOTRIGONA-POSTICA (HYMENOPTERA, MELIPONINAE)

Citation
Jaf. Diniz et Mib. Pignata, QUANTITATIVE GENETICS OF MULTIVARIATE MORPHOMETRIC VARIATION IN THE NEOTROPICAL STINGLESS BEE, SCAPTOTRIGONA-POSTICA (HYMENOPTERA, MELIPONINAE), Brazilian journal of genetics, 17(3), 1994, pp. 259-265
Citations number
NO
Categorie Soggetti
Genetics & Heredity
Journal title
Brazilian journal of genetics
ISSN journal
01008455 → ACNP
Volume
17
Issue
3
Year of publication
1994
Pages
259 - 265
Database
ISI
SICI code
0100-8455(1994)17:3<259:QGOMMV>2.0.ZU;2-H
Abstract
A quantitative genetic analysis was performed to evaluate phenotypic a nd genotypic multivariate patterns of morphometric variation in Scapto trigona postica. One hundred and fifty bees, collected from 15 man-mad e hives, were analyzed by measuring fifteen characters. Heritabilities found ranged from 0.799 to 0.201. Genetic and phenotypic correlations matrices were highly associated, considering their matrix correlation (r(s) = 0.809; P < 0.01 by Mantel test) and the correspondence of var imax rotated eigenvectors of principal component analysis applied to b oth matrices. Also, phenotypic patterns of correlation were more assoc iated with functional or developmental systems than genetic ones. Ther e was, however, more overall integration in genotypic than in phenotyp ic components of morphometric variation. This is expected considering that most parts of the body of holometabolous insects are derived from imaginal discs, in such a way that final patterns of morphometric var iation are not determined until relatively late in development. Genera l results indicate that phenotypic patterns alone can be used to test evolutionary hypotheses in S.postica.