Influences of harvesting on genetic diversity and population structure of Anemone altaica (Ranunculaceae), a traditional Chinese medicinal herb

Xü, Wei; Bai, Weirong; Wen, Guangjun; Huai, Huyin; Liu, Aizhong

doi:10.1016/j.bse.2012.10.001

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…, Xu et al . ) may not always lead to a detectable reduction in genetic diversity. However, our finding does not support those of Cruse‐Sanders et al .…”

Section: Discussionmentioning

confidence: 99%

“…This has translated into significantly lower seedlings density in harvested populations (Gaoue & Ticktin 2007). Similarly, several other studies on tropical trees also report that disturbance such as logging (see Cloutier et al 2007, Kettle et al 2007, Silva et al 2008 or NTFP harvesting in China (Wang et al 2013, Xu et al 2013) may not always lead to a detectable reduction in genetic diversity. However, our finding does not support those of Cruse-Sanders et al (2005) and Mooney (2007), who documented reduced genetic diversity in root-harvested populations of American ginseng.…”

Section: Locusmentioning

confidence: 96%

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Non‐timber Forest Product Harvest does not Affect the Genetic Diversity of a Tropical Tree Despite Negative Effects on Population Fitness

et al. 2014

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The level of genetic diversity in a population can affect ecological processes and plant responses to disturbance. In turn, disturbance can alter population genetic diversity and structure. Populations in fragmented and logged habitats often show reduced genetic diversity and increased inbreeding and differentiation. Long‐term harvesting of wild plants (for foliage, bark, and roots), can affect population genetic diversity by altering individual fitness and genetic contribution. Our understanding of these changes in genetic diversity due to the harvesting of plant organs is still limited. We used nine microsatellite markers to study the effect of long‐term bark and foliage harvest by Fulani people on the genetic diversity and structure of 12 populations of African mahogany (Khaya senegalensis) in Benin. We sampled 20 individuals in each population to test the effect of harvesting. For each population, we divided the samples equally between seedling and adults to test if the effects are stronger in seedlings. We found moderate genetic diversity (He = 0.53 ± 0.04) and weak but significant differentiation among local populations (FST = 0.043, P < 0.001). There was no significant effect of harvest on genetic diversity or structure, although previous work found significant negative effects of harvest on the reproduction of adults, offspring density, and population fitness. Our results suggest that demographic responses to disturbance precede a detectable genetic response. Future studies should focus on using parentage analysis to test if genotypes of harvested parents are directly represented in the offspring populations.

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“…, Xu et al . ) may not always lead to a detectable reduction in genetic diversity. However, our finding does not support those of Cruse‐Sanders et al .…”

Section: Discussionmentioning

confidence: 99%

Section: Locusmentioning

confidence: 96%

Non‐timber Forest Product Harvest does not Affect the Genetic Diversity of a Tropical Tree Despite Negative Effects on Population Fitness

et al. 2014

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Genetic diversity of the rare plant Anemone shikokiana (Makino) Makino (Ranunculaceae) inferred from AFLP markers

et al. 2014

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Diversity and genetic structure of the husk tomato (Physalis philadelphica Lam.) in Western Mexico

Zamora-Tavares

Vargas‐Ponce

Sánchez-Martínez

et al. 2014

Genet Resour Crop Evol

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Physalis is an American plant genus that includes species of economic importance for their edible fruit. Consumption of this fruit is a historic tradition in Mexico. Physalis philadelphica is one of the most abundant species, which can grow under wild, weedy or cultivated conditions. It presents high morphological variability in terms of vegetative and reproductive traits; however, no study has been made of its genetic diversity or the impact of human activity on its diversity and differentiation patterns. We determined genetic parameters in nine populations representing a management gradient, including three wild, three weedy and three cultivated populations, using 88 inter-simple sequence repeat markers. The diversity of the total gene pool was high (Ht = 0.292, HT B = 0.319) and did not decrease with the intensity degree of management. Reproductive system, life form and the wide distribution determined the genetic variation of the taxon. AMOVA revealed high variation within the total gene pool (44.3 %) and among populations (46.7 %). This was influenced by pollinator behavior, dispersal form, geographic discontinuity of the studied populations and human selection. Variation among population management categories was lower (9 %), indicating that this variable has little effect, most likely due to the broad gene pool of the taxon. However, analysis of genetic distance and Bayesian assignment distinguished two groups: cultivated and wild, with weedy populations interspersed between. This result suggests that selection for agricultural and morphological attributes of P. philadelphica contributes to this differentiation. Future studies could address the evolutionary dynamics of the wild-weedy-domesticated complex.

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Influences of harvesting on genetic diversity and population structure of Anemone altaica (Ranunculaceae), a traditional Chinese medicinal herb

Cited by 4 publications

References 15 publications

Non‐timber Forest Product Harvest does not Affect the Genetic Diversity of a Tropical Tree Despite Negative Effects on Population Fitness

Non‐timber Forest Product Harvest does not Affect the Genetic Diversity of a Tropical Tree Despite Negative Effects on Population Fitness

Genetic diversity of the rare plant Anemone shikokiana (Makino) Makino (Ranunculaceae) inferred from AFLP markers

Diversity and genetic structure of the husk tomato (Physalis philadelphica Lam.) in Western Mexico

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