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Article: Reproductive biology and conservation genetics of Goodyera procera (Orchidaceae)

TitleReproductive biology and conservation genetics of Goodyera procera (Orchidaceae)
Authors
KeywordsAllozymes
Conservation genetics
Goodyera procera
Orchidaceae
Orchids
Pollination biology
RAPD
Issue Date1999
PublisherBotanical Society of America, Inc (Columbus), Business Office. The Journal's web site is located at http://www.amjbot.org/
Citation
American Journal Of Botany, 1999, v. 86 n. 10, p. 1406-1413 How to Cite?
AbstractGoodyera procera is an endangered terrestrial orchid in Hong Kong. Information on its reproductive biology and pattern of genetic variation is needed to develop efficient conservation strategies. Pollination experiments showed that the species is self-compatible, but dependent on pollinators for fruit set. Bagged plants produced no fruits. Artificial pollinations resulted in 92% fruit set through selfing, 94% with geitonogamous pollination, and 95% following xenogamous pollination. Fruit set in the open-pollinated control was 75% at the same sites. Allozyme electrophoresis and random amplified polymorphic DNA (RAPD) were used to evaluate genetic variation and structure of 15 populations of Goodyera procera. Despite its outbreeding system, allozyme data revealed low variation both at the population (P = 21.78%, A = 1.22, and H = 0.073) and species (P = 33%, A = 1.33, and H = 0.15) levels, in comparison with other animal-pollinated outbreeding plant species. However, RAPD variation was relatively high (P = 55.13% and H = 0.18 at the population level, and P = 97.03% and H = 0.29 at the species level). G(ST) estimates indicated high levels of genetic differentiation among populations (G(ST) = 0.52 and I = 0.909 ± 0.049 based on allozyme data, and G(ST) = 0.39 and I = 0.859 ± 0.038 based on RAPD data), much above the average for outcrossing species, suggesting that gene flow was limited in this species. Based on these data, suitable strategies were developed for the genetic conservation and management of the species.
Persistent Identifierhttp://hdl.handle.net/10722/84738
ISSN
2015 Impact Factor: 2.811
2015 SCImago Journal Rankings: 1.459
References

 

DC FieldValueLanguage
dc.contributor.authorWong, KCen_HK
dc.contributor.authorSun, Men_HK
dc.date.accessioned2010-09-06T08:56:32Z-
dc.date.available2010-09-06T08:56:32Z-
dc.date.issued1999en_HK
dc.identifier.citationAmerican Journal Of Botany, 1999, v. 86 n. 10, p. 1406-1413en_HK
dc.identifier.issn0002-9122en_HK
dc.identifier.urihttp://hdl.handle.net/10722/84738-
dc.description.abstractGoodyera procera is an endangered terrestrial orchid in Hong Kong. Information on its reproductive biology and pattern of genetic variation is needed to develop efficient conservation strategies. Pollination experiments showed that the species is self-compatible, but dependent on pollinators for fruit set. Bagged plants produced no fruits. Artificial pollinations resulted in 92% fruit set through selfing, 94% with geitonogamous pollination, and 95% following xenogamous pollination. Fruit set in the open-pollinated control was 75% at the same sites. Allozyme electrophoresis and random amplified polymorphic DNA (RAPD) were used to evaluate genetic variation and structure of 15 populations of Goodyera procera. Despite its outbreeding system, allozyme data revealed low variation both at the population (P = 21.78%, A = 1.22, and H = 0.073) and species (P = 33%, A = 1.33, and H = 0.15) levels, in comparison with other animal-pollinated outbreeding plant species. However, RAPD variation was relatively high (P = 55.13% and H = 0.18 at the population level, and P = 97.03% and H = 0.29 at the species level). G(ST) estimates indicated high levels of genetic differentiation among populations (G(ST) = 0.52 and I = 0.909 ± 0.049 based on allozyme data, and G(ST) = 0.39 and I = 0.859 ± 0.038 based on RAPD data), much above the average for outcrossing species, suggesting that gene flow was limited in this species. Based on these data, suitable strategies were developed for the genetic conservation and management of the species.en_HK
dc.languageengen_HK
dc.publisherBotanical Society of America, Inc (Columbus), Business Office. The Journal's web site is located at http://www.amjbot.org/en_HK
dc.relation.ispartofAmerican Journal of Botanyen_HK
dc.subjectAllozymesen_HK
dc.subjectConservation geneticsen_HK
dc.subjectGoodyera proceraen_HK
dc.subjectOrchidaceaeen_HK
dc.subjectOrchidsen_HK
dc.subjectPollination biologyen_HK
dc.subjectRAPDen_HK
dc.titleReproductive biology and conservation genetics of Goodyera procera (Orchidaceae)en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0002-9122&volume=86&spage=1406&epage=1413&date=1999&atitle=Reproductive+biology+and+conservation+genetics+of+Goodyera+procera+(Orchidaceae)en_HK
dc.identifier.emailSun, M: meisun@hkucc.hku.hken_HK
dc.identifier.authoritySun, M=rp00779en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0033299861en_HK
dc.identifier.hkuros44370en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033299861&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume86en_HK
dc.identifier.issue10en_HK
dc.identifier.spage1406en_HK
dc.identifier.epage1413en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWong, KC=7404759813en_HK
dc.identifier.scopusauthoridSun, M=7403181447en_HK

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