000 nab a22 7a 4500
999 _c60373
001 60373
003 MX-TxCIM
005 20191219215615.0
008 190426s2019||||sz |||p|op||||00||0|eng|d
022 _a1422-0067
024 8 _ahttps://doi.org/10.3390/ijms20061352
040 _aMX-TxCIM
041 0 _aeng
100 1 _99216
_aRobbana, C.
245 1 0 _aGenome-wide genetic diversity and population structure of tunisian durum wheat landraces based on DArTseq technology
260 _aBasel (Switzerland) :
500 _aPeer review
500 _aOpen Access
520 _aTunisia, being part of the secondary center of diversity for durum wheat, has rich unexploited landraces that are being continuously lost and replaced by high yielding modern cultivars. This study aimed to investigate the genetic diversity and population structure of 196 durum wheat lines issued from landraces collected from Tunisia using Diversity Array Technology sequencing (DArTseq) and to understand possible ways of introduction in comparing them to landraces from surrounding countries. A total of 16,148 polymorphic DArTseq markers covering equally the A and B genomes were effective to assess the genetic diversity and to classify the accessions. Cluster analysis and discriminant analysis of principal components (DAPC) allowed us to distinguish five distinct groups that matched well with the farmer's variety nomenclature. Interestingly, Mahmoudi and Biskri landraces constitute the same gene pool while Jenah Zarzoura constitutes a completely different group. Analysis of molecular variance (AMOVA) showed that the genetic variation was among rather than within the landraces. DAPC analysis of the Tunisian, Mediterranean and West Asian landraces confirmed our previous population structure and showed a genetic similarity between the Tunisian and the North African landraces with the exception of Jenah Zarzoura being the most distant. The genomic characterization of the Tunisian collection will enhance their conservation and sustainable use.
546 _aText in English
650 7 _aHard wheat
650 7 _aLand varieties
650 7 _aGenetic diversity
650 7 _aLand races
650 7 _aPopulation Structure
651 7 _2AGROVOC
700 1 _92110
_aKehel, Z.
700 1 _aBen Naceur, M.
700 1 _9766
_aSansaloni, C.P.
_gGenetic Resources Program
700 1 _95980
_aBassi, F.
700 1 _91407
_aAmri, A.
773 0 _gv. 20, n. 6, art. 1352
_dBasel (Switzerland) : MDPI, 2019.
_tInternational Journal of Molecular Sciences
856 4 _yOpen Access through Dspace
942 _cJA