Version 1
: Received: 2 September 2020 / Approved: 4 September 2020 / Online: 4 September 2020 (11:11:37 CEST)
How to cite:
Kafoutchoni, K. M.; Agoyi, E. E.; Agbahoungba, S.; Assogbadjo, A. E.; Agbangla, C. Genetic Diversity and Population Structure in a Regional Collection of Kersting’s Groundnut (Macrotyloma geocarpum (Harms) Maréchal & Baudet). Preprints2020, 2020090097. https://doi.org/10.20944/preprints202009.0097.v1
Kafoutchoni, K. M.; Agoyi, E. E.; Agbahoungba, S.; Assogbadjo, A. E.; Agbangla, C. Genetic Diversity and Population Structure in a Regional Collection of Kersting’s Groundnut (Macrotyloma geocarpum (Harms) Maréchal & Baudet). Preprints 2020, 2020090097. https://doi.org/10.20944/preprints202009.0097.v1
Kafoutchoni, K. M.; Agoyi, E. E.; Agbahoungba, S.; Assogbadjo, A. E.; Agbangla, C. Genetic Diversity and Population Structure in a Regional Collection of Kersting’s Groundnut (Macrotyloma geocarpum (Harms) Maréchal & Baudet). Preprints2020, 2020090097. https://doi.org/10.20944/preprints202009.0097.v1
APA Style
Kafoutchoni, K. M., Agoyi, E. E., Agbahoungba, S., Assogbadjo, A. E., & Agbangla, C. (2020). Genetic Diversity and Population Structure in a Regional Collection of Kersting’s Groundnut (<em>Macrotyloma geocarpum </em>(Harms) Maréchal & Baudet). Preprints. https://doi.org/10.20944/preprints202009.0097.v1
Chicago/Turabian Style
Kafoutchoni, K. M., Achille E. Assogbadjo and Clément Agbangla. 2020 "Genetic Diversity and Population Structure in a Regional Collection of Kersting’s Groundnut (<em>Macrotyloma geocarpum </em>(Harms) Maréchal & Baudet)" Preprints. https://doi.org/10.20944/preprints202009.0097.v1
Abstract
Kersting’s groundnut is an important source of protein and essential nutrients that contribute to food security in West Africa. However, the crop is still underexploited by the populations and under-researched by the scientific community. This study aimed to investigate the genetic diversity and population structure of 217 Kersting’s groundnut accessions from five origins using 886 DArTseq markers. Gene diversity was low and ranged from 0.049 to 0.064. The number of private alleles greatly varied among populations (42–192) and morphotypes (40–339). Moderate to very high levels of selfing and inbreeding were observed among populations (s=56–85%, FIS=0.389–0.736) and morphotypes (s=57–82%, FIS=0.400–0.691). Moreover, little to very high genetic differentiations were observed among populations (0.006≤FIS≤0.371) and morphotypes (0.029≤FIS≤0.307). Analysis of molecular variance partitioned 38.5% of the genetic variation among and 48.7% within populations (P<0.001). Significant isolations by distance were detected between populations (R2=0.612, P=0.011) and accessions (R2=0.499, P<0.001). Discriminant analysis of principal components and neighbour joining consistently distinguished eight distinct clusters. These data provide a global picture of the existing genetic diversity for Kersting’s groundnut and will guide the choice of breeding strategies to increase production.
Keywords
orphan crop; genotyping-by-sequencing; inbreeding; pre-breeding; population genetics; DArTseq; isolation by distance
Subject
Biology and Life Sciences, Biochemistry and Molecular Biology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.