Current Status and Conservation Strategies of Wild Orchid Resources in Guangxi Yachang Forests

Feng, Chang-Lin; Deng, Zhenhai; Cai, Daoxiong; Wu, Tian-Gui; Jia, Hongyan; Bai, Lin-Hai; Zhao, Zu-Zhuang; Su, Yong‐Chao

doi:10.3724/sp.j.1142.2012.30285

Cited by 4 publications

(3 citation statements)

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“…For example, there are about 100 species in the Bawangling National Nature Reserve (Hainan), 220 species in the Luchun Huanglianshan National Nature Reserve (Yunnan), 400 species in the Xishuangbanna National Nature Reserve (Yunnan) ( Liu et al., 2015 ), and 450 species in the Gaoligongshan National Nature Reserve (Yunnan). The Yachang Orchid National Nature Reserve was established in 2006 in Guangxi to protect native orchids in limestone regions ( Cameron, 2010 ; Feng et al., 2012 ; Huang, 2017 ). Based on a biodiversity checklist, Qin et al.…”

Section: In Situ Conservationmentioning

confidence: 99%

Orchid conservation in China from 2000 to 2020: Achievements and perspectives

et al. 2021

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We review achievements in the conservation of orchid diversity in China over the last 21 years. We provide updated information on orchid biodiversity and suggestions for orchid conservation in China. We outline national policies of biodiversity conservation, especially of orchid conservation, which provide general guidelines for orchid conservation in China. There are now approximately 1708 known species of Orchidaceae in 181 genera in China, including five new genera and 365 new species described over the last 21 years. The assessment of risk of extinction of all 1502 known native orchid species in China in 2013 indicated that 653 species were identified as threatened, 132 species were treated as data-deficient, and four species endemic to China were classified as extinct. Approximately 1100 species (ca. 65%) are protected in national nature reserves, and another ~66 species in provincial nature reserves. About 800 native orchid species have living collections in major botanical gardens. The pollination biology of 74 native orchid species and the genetic diversity and spatial genetic structure of 29 orchid species have been investigated at a local scale and/or across species distributions. The mycorrhizal fungal community composition has been investigated in many genera, such as Bletilla , Coelogyne , Cymbidium , Cypripedium , and Dendrobium . Approximately 292 species will be included in the list of national key protected wild plants this year. Two major tasks for near future include in situ conservation and monitoring population dynamics of endangered species.

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Section: In Situ Conservationmentioning

confidence: 99%

Orchid conservation in China from 2000 to 2020: Achievements and perspectives

et al. 2021

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“…The plant's described flowering time in December is completely different from that of other species of this genus (flowering time is usually from April to July), which needs to be verified. The species was not found for the next 80 years, until 2004, Diversity 2023, 15, 990 2 of 15 when it was rediscovered in the Yachang Forestry Centre, Guangxi Province, where a nature reserve has been established to protect it [3]. With in-depth field investigations, 17 small populations of the species have been found in Guizhou, Guangxi, and Yunnan [4].…”

Section: Introductionmentioning

confidence: 99%

“…It is also treated as a plant species with extremely small populations (PSESP), and the main risk factors are lack of competitiveness of the population, fragmentation of habitat, very low natural reproduction rate, low seed germination rate, and human interference. To protect this species and to prevent extinction, protection measures are needed, and some researchers have studied the species in terms of its morphology, rapid tissue propagation, symbiotic bacteria, mechanism of endangerment, and conservation [3,[5][6][7]. Genetic diversity refers to the largest genetic variation in the genetic composition of a specific species.…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity and Structure of Geodorum eulophioides, a Plant Species with Extremely Small Populations in China

Li,

Ran,

Zhang

et al. 2023

Diversity

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Geodorum eulophioides is a unique and endangered species belonging to the Orchidaceae family in China. It has great potential as an ornamental horticultural plant. However, little is known about its genetic diversity and reasons for being endangered due to its narrow distribution and few populations in the wild. To effectively evaluate and conserve available resources, the genetic diversity and population structure of G. eulophioides were analyzed in this study. A total of 94 individuals from 10 natural populations were studied using site-specific amplified fragment sequencing (SLAF-seq). Based on the 76,340 SNPs detected by SLAF-seq, genetic diversity analysis was performed and markers associated with environmental variables were determined. The results showed that the level of genetic diversity in the 10 natural populations studied was low, with PIC values ranging from 0.1874 to 0.2156. FIS values ranged from −0.2376 to 0.2658, with excess and deficiency in heterozygotes. FST values ranged from 0.0482 to 0.3144, with genetic variation among populations. AMOVA results showed that the genetic variation among populations accounted for 21.35% of the total variation, and the remaining genetic variation among individuals within populations was 78.65%. The results of the population structure analysis showed that 94 individuals were classified into three major groups and two subgroups. Environmental association analysis using Bayenv2 and LFMM yielded thirty and eighteen putative adaptive loci, respectively, and five specific functional genes were annotated. In summary, this study provides further insight into the genetic structure of G. eulophioides and provides a reference for protection and restoration.

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Introduction to Orchid Plants

Jin,

Li,

et al. 2023

Atlas of Chinese Native Orchids

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Current Status and Conservation Strategies of Wild Orchid Resources in Guangxi Yachang Forests

Cited by 4 publications

References 0 publications

Orchid conservation in China from 2000 to 2020: Achievements and perspectives

Orchid conservation in China from 2000 to 2020: Achievements and perspectives

Genetic Diversity and Structure of Geodorum eulophioides, a Plant Species with Extremely Small Populations in China

Introduction to Orchid Plants

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