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Article: Reproductive biology and conservation genetics of Goodyera procera (Orchidaceae)
Title | Reproductive biology and conservation genetics of Goodyera procera (Orchidaceae) |
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Authors | |
Keywords | Allozymes Conservation genetics Goodyera procera Orchidaceae Orchids Pollination biology RAPD |
Issue Date | 1999 |
Publisher | Botanical 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? |
Abstract | Goodyera 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 Identifier | http://hdl.handle.net/10722/84738 |
ISSN | 2023 Impact Factor: 2.4 2023 SCImago Journal Rankings: 0.841 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Wong, KC | en_HK |
dc.contributor.author | Sun, M | en_HK |
dc.date.accessioned | 2010-09-06T08:56:32Z | - |
dc.date.available | 2010-09-06T08:56:32Z | - |
dc.date.issued | 1999 | en_HK |
dc.identifier.citation | American Journal Of Botany, 1999, v. 86 n. 10, p. 1406-1413 | en_HK |
dc.identifier.issn | 0002-9122 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/84738 | - |
dc.description.abstract | Goodyera 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.language | eng | en_HK |
dc.publisher | Botanical Society of America, Inc (Columbus), Business Office. The Journal's web site is located at http://www.amjbot.org/ | en_HK |
dc.relation.ispartof | American Journal of Botany | en_HK |
dc.subject | Allozymes | en_HK |
dc.subject | Conservation genetics | en_HK |
dc.subject | Goodyera procera | en_HK |
dc.subject | Orchidaceae | en_HK |
dc.subject | Orchids | en_HK |
dc.subject | Pollination biology | en_HK |
dc.subject | RAPD | en_HK |
dc.title | Reproductive biology and conservation genetics of Goodyera procera (Orchidaceae) | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://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.email | Sun, M: meisun@hkucc.hku.hk | en_HK |
dc.identifier.authority | Sun, M=rp00779 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-0033299861 | en_HK |
dc.identifier.hkuros | 44370 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0033299861&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 86 | en_HK |
dc.identifier.issue | 10 | en_HK |
dc.identifier.spage | 1406 | en_HK |
dc.identifier.epage | 1413 | en_HK |
dc.identifier.isi | WOS:000083254800006 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Wong, KC=7404759813 | en_HK |
dc.identifier.scopusauthorid | Sun, M=7403181447 | en_HK |
dc.identifier.issnl | 0002-9122 | - |