Open AccessRelationships between protein polymorphism and phenotypic variation in Populus deltoides Bartr
Author(s) -
PIGLIUCCI M.,
MALVOLTI M. E.,
FINESCHI S.
Publication year - 1991
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1991.tb00555.x
Subject(s) - biology , salicaceae , phenotype , pairwise comparison , genetic variation , genetics , variation (astronomy) , phenotypic trait , evolutionary biology , botany , statistics , woody plant , gene , mathematics , physics , astrophysics
The relationships between phenotypic characters and genetic distances based on isoenzymatic markers are still poorly understood, especially in trees. A full factorial crossing design on Populus deltoides Bartr. is used for pairwise comparisons between phenotypic distance, genetic distance estimated by isozyme analysis and degree of sibship. Results suggest that the observed lack of correspondence between the above mentioned estimations of biological variation is mainly due to the fact that neither phenotypic distances nor isoenzymatic distances are good predictors of the degree of sibship: in fact, they show some statistical association with sibship, but the coefficients of determination are characterized by very low values. Possible reasons for this double lack of correspondence are discussed and evaluated.