ArticleJournal of ethnobiology and ethnomedicine2016
Influence of ethnic traditional cultures on genetic diversity of rice landraces under on-farm conservation in southwest China.
Article in Journal of ethnobiology and ethnomedicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- Rooted in culture, constrained by means: exploring crops and associated motivations among Masikoro and Antandroy farmers in Southwestern Madagascar.Journal of ethnobiology and ethnomedicine · 2026Article
- Beyond efficiency: The multi-scale architecture of robust water transport in plants.Quantitative plant biology · 2026Review
- Metabolome and Transcriptome Unveil the Correlated Metabolites and Transcripts with 2-acetyl-1-pyrroline in Fragrant Rice.International journal of molecular sciences · 2024Article
- On-farm crop diversity, conservation, importance and value: a case study of landraces from Western Ghats of Karnataka, India.Scientific reports · 2024Article
- Ethnobotanical studies on rice landraces under on-farm conservation in Xishuangbanna of Yunnan Province, China.Journal of ethnobiology and ethnomedicine · 2024Article
- Identification and analysis of the genetic integrity of different types of rice resources through SSR markers.Scientific reports · 2023Article
- Phenotypic differences in the appearance of soft rice and its endosperm structural basis.Frontiers in plant science · 2023Article
- Kam Sweet Rice (Frontiers in plant science · 2022Article
- Genetic Diversity Evaluation and Conservation of Kam Fragrant Glutinous Rice (Plants (Basel, Switzerland) · 2021Article
- Exploring the genetic diversity within traditional Philippine pigmented Rice.Rice (New York, N.Y.) · 2019Article
- Status and factors influencing on-farm conservation of Kam Sweet Rice (Oryza sativa L.) genetic resources in southeast Guizhou Province, China.Journal of ethnobiology and ethnomedicine · 2018Article
- In situ conservation-harnessing natural and human-derived evolutionary forces to ensure future crop adaptation.Evolutionary applications · 2017Review
- Agrobiodiversity and in situ conservation in ethnic minority communities of Xishuangbanna in Yunnan Province, Southwest China.Journal of ethnobiology and ethnomedicine · 2017Article
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11 authors.
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Abstract
backgroundCrop genetic resources are important components of biodiversity. However, with the large-scale promotion of mono-cropping, genetic diversity has largely been lost. Ex-situ conservation approaches were widely used to protect traditional crop varieties worldwide. However, this method fails to maintain the dynamic evolutionary processes of crop genetic resources in their original habitats, leading to genetic diversity reduction and even loss of the capacity of resistance to new diseases and pests. Therefore, on-farm conservation has been considered a crucial complement to ex-situ conservation. This study aimed at clarifying the genetic diversity differences between ex-situ conservation and on-farm conservation and to exploring the influence of traditional cultures on genetic diversity of rice landraces under on-farm conservation.
methodsThe conservation status of rice landrace varieties, including Indica and Japonica, non-glutinous rice (Oryza sativa) and glutinous rice (Oryza sativa var. glutinosa Matsum), was obtained through ethno-biology investigation method in 12 villages of ethnic groups from Guizhou, Yunnan and Guangxi provinces of China. The genetic diversity between 24 pairs of the same rice landraces from different times were compared using simple sequence repeat (SSR) molecular markers technology. The landrace paris studied were collected in 1980 and maintained ex-situ, while 2014 samples were collected on-farm in southwest of China.
resultsThe results showed that many varieties of rice landraces have been preserved on-farm by local farmers for hundreds or thousands of years. The number of alleles (Na), effective number of alleles (Ne), Nei genetic diversity index (He) and Shannon information index (I) of rice landraces were significantly higher by 12.3-30.4 % under on-farm conservation than under ex-situ conservation. Compared with the ex-situ conservation approach, rice landraces under on-farm conservation programs had more alleles and higher genetic diversity. In every site we investigated, ethnic traditional cultures play a positive influence on rice landrace variety diversity and genetic diversity.
conclusionMost China's rice landraces were conserved in the ethnic areas of southwest China. On-farm conservation can effectively promote the allelic variation and increase the genetic diversity of rice landraces over the past 35 years. Moreover, ethnic traditional culture practices are a crucial foundation to increase genetic diversity of rice landraces and implement on-farm conservation.
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