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Influence of ethnic traditional cultures on genetic diversity of rice landraces under on-farm conservation in southwest China

Overview of attention for article published in Journal of Ethnobiology and Ethnomedicine, October 2016
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3 X users
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1 Wikipedia page

Citations

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27 Dimensions

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54 Mendeley
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Title
Influence of ethnic traditional cultures on genetic diversity of rice landraces under on-farm conservation in southwest China
Published in
Journal of Ethnobiology and Ethnomedicine, October 2016
DOI 10.1186/s13002-016-0120-0
Pubmed ID
Authors

Yanjie Wang, Yanli Wang, Xiaodong Sun, Zhuoma Caiji, Jingbiao Yang, Di Cui, Guilan Cao, Xiaoding Ma, Bing Han, Dayuan Xue, Longzhi Han

Abstract

Crop 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. The 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. The 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. Most 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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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 54 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 54 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 10 19%
Researcher 9 17%
Student > Ph. D. Student 5 9%
Professor 4 7%
Lecturer 3 6%
Other 5 9%
Unknown 18 33%
Readers by discipline Count As %
Agricultural and Biological Sciences 21 39%
Social Sciences 6 11%
Biochemistry, Genetics and Molecular Biology 4 7%
Environmental Science 3 6%
Nursing and Health Professions 1 2%
Other 2 4%
Unknown 17 31%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 02 June 2021.
All research outputs
#5,723,249
of 22,953,506 outputs
Outputs from Journal of Ethnobiology and Ethnomedicine
#200
of 736 outputs
Outputs of similar age
#86,997
of 314,617 outputs
Outputs of similar age from Journal of Ethnobiology and Ethnomedicine
#2
of 11 outputs
Altmetric has tracked 22,953,506 research outputs across all sources so far. This one has received more attention than most of these and is in the 74th percentile.
So far Altmetric has tracked 736 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.7. This one has gotten more attention than average, scoring higher than 72% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 314,617 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 72% of its contemporaries.
We're also able to compare this research output to 11 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 81% of its contemporaries.