Implications of phenotypic plasticity in a subspecific numerical taxonomic study of Ornithogalum montanum Cyr. (Liliaceae) are discussed. Clones belonging to six natural populations were grown in a glasshouse, and their morphological response to three water dosages was analyzed by means of principal component analysis. PC-1 ranks the three groups of replicated populations, suggesting a high degree of phenotypic plasticity; on the other hand, PC-3 is almost environmentally independent. Proximities in the phenetic space are shown to be at least partially environmentally dependent, suggesting a reaction norm for the character correlation matrix. The results do not corroborate a previous recognition of six subspecies of O. montanum.
Implication of phenotipic plasticity for numerical taxonomy of Ornitigalum montanum Cyr (Liliaceae) / Pigliucci, M; Politi, Mg; Bellincampi, Daniela. - In: CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE. - ISSN 0008-4026. - STAMPA. - 69:(1991), pp. 34-38. [10.1139/b91-006]
Implication of phenotipic plasticity for numerical taxonomy of Ornitigalum montanum Cyr (Liliaceae).
BELLINCAMPI, Daniela
1991
Abstract
Implications of phenotypic plasticity in a subspecific numerical taxonomic study of Ornithogalum montanum Cyr. (Liliaceae) are discussed. Clones belonging to six natural populations were grown in a glasshouse, and their morphological response to three water dosages was analyzed by means of principal component analysis. PC-1 ranks the three groups of replicated populations, suggesting a high degree of phenotypic plasticity; on the other hand, PC-3 is almost environmentally independent. Proximities in the phenetic space are shown to be at least partially environmentally dependent, suggesting a reaction norm for the character correlation matrix. The results do not corroborate a previous recognition of six subspecies of O. montanum.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.