Spatial genetic structure in a population of the endangered Korean plant Abeliophyllum distichum (Oleaceae)

Authors
Citation
Mg. Chung, Spatial genetic structure in a population of the endangered Korean plant Abeliophyllum distichum (Oleaceae), BELG J BOT, 132(1), 1999, pp. 26-30
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Plant Sciences
Journal title
BELGIAN JOURNAL OF BOTANY
ISSN journal
0778-4031 → ACNP
Volume
132
Issue
1
Year of publication
1999
Pages
26 - 30
Database
ISI
SICI code
0778-4031(1999)132:1<26:SGSIAP>2.0.ZU;2-J
Abstract
Fifty-two individuals in a population of Abeliophyllum distichum, a monotyp ic genus endemic to the central Korean Peninsula, were mapped to examine th e spatial genetic structure using ten alleles of six allozyme loci. Moran's I values were significantly different from the expected value (E [I] = -0. 02) in 39 of 100 cases and the overall correlogram for six out of 10 allele s was significant. In the short distance classes (0 < 14 m), 20 positive an d only five negative on a total of 50 Moran's I values were significantly d ifferent from the expected value, indicating a genetic similarity among ind ividuals within the short distances. Although A. distichum has a heterostyl y-breeding system and a winged fruit (samara) which would be dispersed by w ind, the spatial genetic structure detected in this study indicated that ge ne flow would not be extensive in a population of A. distichum because of p ine forest acting as a shield for wind movement. It is recommended that the sampling for conservation purposes might be performed at a diameter of mor e than 16 m to extract the genetic diversity across an entire population.