| Abstract Detail
Conservation Biology Na, Hye-Ryun [1], Kim, Changkyun [1], Choi, Hong-Keun [1]. A comparison of Brasenia schreberi (Cabombaceae) populations based on AFLP analysis. Brasenia schreberi is an endangered aquatic plant in South Korea. To assess the genetic variation and population structure of B. schreberi for conservation, 48 individuals from six local populations were analysed by amplified fragment length polymorphism (AFLP). Five primer pairs produced a total 582 reproducible AFLP bands for 48 individuals, of which 408 (69.3%) were polymorphic. The mean values of HE, hs, and I across the 6 populations were 0.183, 0.212, and 0.256, respectively. Population GGT (HE = 0.212; hs = 0.226; I = 0.323) exhibited the highest heterozygosity in all three estimates. Low genetic differentiation (θB = 0.196) among populations revealed by the Bayesian approach. Analysis of molecular variance showed that 77.5% of variability was partitioned among individuals within populations. The high levels of variability among individuals and the lack of clear population differentiation suggest that this species comprises a single, genetically diverse group. This distribution is in agreement with the outcrossing nature of this plant. According to the present studies, we suggest that conservation and management of B. schreberi should concentrate on maintaining the high levels of genetic diversity through mixing genotypes and promoting outcrossing.
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1 - Ajou University, Division of Natural Sciences, Suwon, 443-749, South Korea
Keywords:
conservation
Endangered species
Brasenia schreberi
Genetic diversity
AFLP.
Presentation Type: Poster:Posters for Topics
Session: P
Location: Exhibit Hall (Northeast, Southwest & Southeast)/Hilton
Date: Sunday, July 8th, 2007
Time: 8:00 AM
Number: P65010
Abstract ID:1977 |
