ibclogo XVI International Botanical Congess

Abstract Number: 2917
Poster No. = 2488


MORPHOLOGICAL AND GENETIC RELATIONSHIPS AMONG PACIFIC BRUGUIERA


J.A. Allen1, N.C. Duke2, O. Björkman3, K.W. Krauss1, and C. Shih3. 1USDA Forest Service, Honolulu, HI, USA, 2University of Queensland, St Lucia, QLD, Australia, 3Carnegie Institution of Washington, Stanford, CA, USA


Morphological and genetic variation within the mangrove genus Bruguiera was compared using material from Australia, Hawaii, and Micronesia. Our goals were to determine the identity of the common species of Bruguiera naturalized in Hawaii and to investigate variation among the closely related B. gymnorrhiza, B. sexangula, and B. exaristata. A multivariate comparison of flower, fruit and leaf morphology with material from Australia and Micronesia indicated that the species in Hawaii is B. sexangula, despite its current identification as B. gymnorrhiza. This conclusion is confirmed by comparing DNA of Hawaiian material with DNA of known B. gymnorrhiza and B. sexangula, using AFLP mapping.

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