Temporal sampling helps unravel the genetic structure of naturally occurring populations of a phytoparasitic nematode. 1. Insights from the estimation of effective population sizes
Identifieur interne : 000597 ( Main/Exploration ); précédent : 000596; suivant : 000598Temporal sampling helps unravel the genetic structure of naturally occurring populations of a phytoparasitic nematode. 1. Insights from the estimation of effective population sizes
Auteurs : Pierre-Loup Jan ; Cécile Gracianne ; Sylvain Fournet ; Eric Olivier ; Jean-François Arnaud ; Catherine Porte ; Sylvie Bardou-Valette ; Marie-Christine Denis ; Eric J. PetitSource :
- Evolutionary Applications [ 1752-4571 ] ; 2016.
Abstract
The sustainability of modern agriculture relies on strategies that can control the ability of pathogens to overcome chemicals or genetic resistances through natural selection. This evolutionary potential, which depends partly on effective population size (
Url:
DOI: 10.1111/eva.12352
PubMed: 26989440
PubMed Central: 4778111
Affiliations:
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Insights from the estimation of effective population sizes</title><author><name sortKey="Jan, Pierre Oup" sort="Jan, Pierre Oup" uniqKey="Jan P" first="Pierre-Loup" last="Jan">Pierre-Loup Jan</name><affiliation><nlm:aff id="eva12352-aff-0001"></nlm:aff></affiliation><affiliation><nlm:aff id="eva12352-aff-0002"></nlm:aff></affiliation></author><author><name sortKey="Gracianne, Cecile" sort="Gracianne, Cecile" uniqKey="Gracianne C" first="Cécile" last="Gracianne">Cécile Gracianne</name><affiliation><nlm:aff id="eva12352-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Fournet, Sylvain" sort="Fournet, Sylvain" uniqKey="Fournet S" first="Sylvain" last="Fournet">Sylvain Fournet</name><affiliation><nlm:aff id="eva12352-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Olivier, Eric" sort="Olivier, Eric" uniqKey="Olivier E" first="Eric" last="Olivier">Eric Olivier</name><affiliation><nlm:aff id="eva12352-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Arnaud, Jean Rancois" sort="Arnaud, Jean Rancois" uniqKey="Arnaud J" first="Jean-François" last="Arnaud">Jean-François Arnaud</name><affiliation><nlm:aff id="eva12352-aff-0003"></nlm:aff></affiliation></author><author><name sortKey="Porte, Catherine" sort="Porte, Catherine" uniqKey="Porte C" first="Catherine" last="Porte">Catherine Porte</name><affiliation><nlm:aff id="eva12352-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Bardou Alette, Sylvie" sort="Bardou Alette, Sylvie" uniqKey="Bardou Alette S" first="Sylvie" last="Bardou-Valette">Sylvie Bardou-Valette</name><affiliation><nlm:aff id="eva12352-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Denis, Marie Hristine" sort="Denis, Marie Hristine" uniqKey="Denis M" first="Marie-Christine" last="Denis">Marie-Christine Denis</name><affiliation><nlm:aff id="eva12352-aff-0001"></nlm:aff></affiliation></author><author><name sortKey="Petit, Eric J" sort="Petit, Eric J" uniqKey="Petit E" first="Eric J." last="Petit">Eric J. Petit</name><affiliation><nlm:aff id="eva12352-aff-0002"></nlm:aff></affiliation></author></analytic><series><title level="j">Evolutionary Applications</title><idno type="eISSN">1752-4571</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><title>Abstract</title><p>The sustainability of modern agriculture relies on strategies that can control the ability of pathogens to overcome chemicals or genetic resistances through natural selection. This evolutionary potential, which depends partly on effective population size (<italic>N</italic><sub><italic>e</italic></sub>), is greatly influenced by human activities. In this context, wild pathogen populations can provide valuable information for assessing the long‐term risk associated with crop pests. In this study, we estimated the effective population size of the beet cyst nematode, <italic>Heterodera schachtii</italic>, by sampling 34 populations infecting the sea beet <italic>Beta vulgaris</italic> spp. <italic>maritima</italic> twice within a one‐year period. Only 20 populations produced enough generations to analyze the variation in allele frequencies, with the remaining populations showing a high mortality rate of the host plant after only 1 year. The 20 analyzed populations showed surprisingly low effective population sizes, with most having <italic>N</italic><sub><italic>e</italic></sub> close to 85 individuals. We attribute these low values to the variation in population size through time, systematic inbreeding, and unbalanced sex‐ratios. Our results suggest that <italic>H. schachtii</italic> has low evolutionary potential in natural environments. Pest control strategies in which populations on crops mimic wild populations may help prevent parasite adaptation to host resistance.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Ciancio, A" uniqKey="Ciancio A">A. Ciancio</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Ferriere, R" uniqKey="Ferriere R">R. 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Riley</name></author></analytic></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct></biblStruct><biblStruct><analytic><author><name sortKey="Subbotin, S A" uniqKey="Subbotin S">S. A. 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