Genetic diversity and population structure of six species of Capparis in Tunisia using AFLP markers | Zendy

Haifa Aichi-Yousfi | Zendy; Bochra A. Bahri | Zendy; Maher Medini | Zendy; Slim Rouz | Zendy; Mohamed Néjib Rejeb | Zendy; Zeineb GhrabiGammar | Zendy

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Genetic diversity and population structure of six species of Capparis in Tunisia using AFLP markers

Author(s) -

Haifa Aichi-Yousfi,

Bochra A. Bahri,

Maher Medini,

Slim Rouz,

Mohamed Néjib Rejeb,

Zeineb GhrabiGammar

Publication year - 2016

Publication title -

comptes rendus biologies

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.529

H-Index - 84

eISSN - 1768-3238

pISSN - 1631-0691

DOI - 10.1016/j.crvi.2016.09.001

Subject(s) - amplified fragment length polymorphism , biology , genetic diversity , upgma , capparis spinosa , population , genetic structure , botany , genetic variation , genetics , gene , demography , sociology

In order to study the genetic diversity, the phylogeographic pattern and hybridization between six Tunisian Capparis species, 213 accessions of Caper were genotyped with three primer combinations of amplified fragment length polymorphism (AFLP) markers. Out of 750 fragments generated, 636 were polymorphic and 407 of them were restricted to a single species. STRUCTURE and PCoA analyses clearly separated morphologically different populations into six distinct genetic ones. The UPGMA analysis grouped the species into three main clusters: G1 grouped C. spinosa subsp. spinosa var. spinosa and C. sicula subsp. sicula; G2 grouped C. ovata subsp. ovata and C. orientalis and G3 clustered C. zoharyi and C. aegyptia. Populations from G1, G2 and G3 were mainly distributed in arid, subhumid, and semi-arid bioclimates, respectively. Additional genetic studies on Capparis could help to identify genes underlying speciation events and local adaptation to geographic areas leading to the development of breeding programs.

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