Premium
Population Genetic Structure of Neotropical Mangrove Species on the Colombian Pacific Coast: Avicennia germinans (Avicenniaceae) 1
Author(s) -
CerónSouza Ivania,
ToroPerea Nelson,
CárdenasHenao Heiber
Publication year - 2005
Publication title -
biotropica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.813
H-Index - 96
eISSN - 1744-7429
pISSN - 0006-3606
DOI - 10.1111/j.1744-7429.2005.00035.x
Subject(s) - mangrove , genetic diversity , amplified fragment length polymorphism , geography , avicennia marina , ecology , population , range (aeronautics) , biology , genetic variation , gene flow , genetic structure , demography , materials science , sociology , composite material
We investigated the genetic variation of Avicennia germinans using 172 AFLP (Amplified Fragment Length Polymorphism) bands of 45 plants from four localities on the Colombian Pacific coast: 11 from Virudó (Chocó), 10 from La Plata (Valle), 12 from Tumaco (Nariño), and 12 from Chontal (Nariño). AFLP variation among localities (16.2%) was highly significant (AMOVA; P < 0.0001). All the analyses showed that Tumaco was the most genetically distinct locality of the four under study. The other three localities, La Plata, Virudó, and Chontal, apparently form a large single subpopulation with high‐to‐moderate gene flow among localities. We also found the genetic diversity of A. germinans on the Colombian Pacific coast ( H E = 0.251) higher than that estimated by others over the broad geographic range of A. germinans . All these results together show that mangroves on the Colombian Pacific coast deserve a strong investigative effort to improve our ecological, evolutionary, and biogeographic knowledge of this important tropical forest type.