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Genetic structure of wild pea (Pisum sativum subsp. elatius) populations in the northern part of the Fertile Crescent reflects moderate cross-pollination and strong effect of geographic but not environmental distance

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Relation http://oar.icrisat.org/10665/
http://dx.doi.org/10.1371/journal.pone.0194056
10.1371/journal.pone.0194056
 
Title Genetic structure of wild pea (Pisum sativum subsp. elatius) populations in the northern part of the Fertile Crescent reflects moderate cross-pollination and strong effect of geographic but not environmental distance
 
Creator Smýkal, P
Trněný, O
Brus, J
Hanáček, P
Rathore, A
Das, R R
Pechanec, V
Duchoslav, M
Bhattacharyya, D
Bariotakis, M
Pirintsos, S
Berger, J
Toker, C
 
Subject Genetics and Genomics
 
Description Knowledge of current genetic diversity and mating systems of crop wild relatives (CWR) in the Fertile Crescent is important in crop genetic improvement, because western agriculture began in the area after the cold-dry period known as Younger Dryas about 12,000 years ago and these species are also wild genepools of the world’s most important food crops. Wild pea (Pisum sativum subsp. elatius) is an important source of genetic diversity for further pea crop improvement harbouring traits useful in climate change context. The genetic structure was assessed on 187 individuals of Pisum sativum subsp. elatius from fourteen populations collected in the northern part of the Fertile Crescent using 18,397 genome wide single nucleotide polymorphism DARTseq markers. AMOVA showed that 63% of the allelic variation was distributed between populations and 19% between individuals within populations. Four populations were found to contain admixed individuals. The observed heterozygosity ranged between 0.99 to 6.26% with estimated self-pollination rate between 47 to 90%. Genetic distances of wild pea populations were correlated with geographic but not environmental (climatic) distances and support a mixed mating system with predominant self-pollination. Niche modelling with future climatic projections showed a local decline in habitats suitable for wild pea, making a strong case for further collection and ex situ conservation.
 
Publisher Public Library of Science
 
Date 2018-03
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10665/1/journal.pone.0194056.pdf
Smýkal, P and Trněný, O and Brus, J and Hanáček, P and Rathore, A and Das, R R and Pechanec, V and Duchoslav, M and Bhattacharyya, D and Bariotakis, M and Pirintsos, S and Berger, J and Toker, C (2018) Genetic structure of wild pea (Pisum sativum subsp. elatius) populations in the northern part of the Fertile Crescent reflects moderate cross-pollination and strong effect of geographic but not environmental distance. PLoS One (TSI), 13 (3). pp. 1-22. ISSN 1932-6203