Am. J. Bot. Li-Cor Advertisement
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (20)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Sun, M.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Sun, M.
Agricola
Right arrow Articles by Sun, M.

American Journal of Botany, Vol 84, 224, Copyright © 1997 by Botanical Society of America, Inc.

REPRODUCTIVE BIOLOGY

Genetic diversity in three colonizing orchids with contrasting mating systems

M Sun

Comparative studies on the genetic attributes of colonizing orchids with diverse mating systems are lacking in the literature. Eulophia sinensis, Spiranthes hongkongensis, and Zeuxine strateumatica are colonizing orchids that frequently occupy newly created habitats in Hong Kong. Mating system studies showed that E. sinensis is a self-compatible but pollinator-dependent outcrossing species, S. hongkongensis is a self-pollinating taxon, and Z srateumatica is apomictic. Population genetic attributes of these orchid species were investigated. Despite their contrasting mating systems, electrophoretic surveys revealed a striking lack of allozyme variation, both within and among populations, in all three species. However, gene duplications were evident in these species, due to their likely polyploid origins, The percentage of duplicate loci exhibiting "fixed heterozygosity" was 10, 21.4, and 20% in E. sinensis, S. hongkongensis, and Z. strateumatica, respectively. The genetic attributes of these orchids are compared to those found in other colonizing plant species.


This article has been cited by other articles:


Home page
 Am. J. Bot.Home page
I. Avila-Diaz and K. Oyama
Conservation genetics of an endemic and endangered epiphytic Laelia speciosa (Orchidaceae)
Am. J. Botany, February 1, 2007; 94(2): 184 - 193.
[Abstract] [Full Text] [PDF]

Home page
 ANN BOT (LOND)Home page
S. ALCANTARA, J. SEMIR, and V. N. SOLFERINI
Low Genetic Structure in an Epiphytic Orchidaceae (Oncidium hookeri) in the Atlantic Rainforest of South-eastern Brazil
Ann. Bot., December 1, 2006; 98(6): 1207 - 1213.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
M. Y. Chung, J. D. Nason, and M. G. Chung
Spatial genetic structure in populations of the terrestrial orchid Cephalanthera longibracteata (Orchidaceae)
Am. J. Botany, January 1, 2004; 91(1): 52 - 57.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
M. Sun and K. C. Wong
Genetic structure of three orchid species with contrasting breeding systems using RAPD and allozyme markers
Am. J. Botany, December 1, 2001; 88(12): 2180 - 2188.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Bot.Home page
A. L. Szalanski, G. Steinauer, R. Bischof, and J. Petersen
Origin and conservation genetics of the threatened Ute ladies'-tresses, Spiranthes diluvialis (Orchidaceae)
Am. J. Botany, January 1, 2001; 88(1): 177 - 180.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1997 by the Botanical Society of America, Inc.