Abstract Detail



Crops and Wild Relatives

Mallick, Dharmendra Kumar [1].

Phylogenetic relationships among the genus Lens in the era of genomics.

Lens culinaris ssp culinaris is a principal pulse crops in the semi-arid regions of the world, being an important dietary protein for the millions of people of the Mediterranean region. Archeologicaly lentil was established  as one of the primary domesticants that founded the Neolithic agricultural revolution in the near East Arch. Tracing Lens phylogeny has been problematic since the publication of a classic monograph as guide to lentils in 1930. Attempts to resolve Lens phylogeny in the last three decades have employed a variety of markers including morphological, seed surface architecture, molecular markers such as isozymes, seed storage proteins, nuclear DNA, RFLP, RAPD, AFLP, Chloroplast and mitochondrial DNA, ITS sequence analysis and recently Genotyping by Sequencing(GBS). Almost all earlier markers identified only  five lentil taxon i.e. Lens culinaris ssp culinaris, Lens culinaris ssp orientalis, Lens nigricans, Lens ervoides and Lens odomensis in which Lens culinaris ssp orientalis was established as progenitor of cultivated lentils. However the recent genomics based markers like EST sequences and Genotyping by Sequencing have identified seven Lentil taxa. Lens tomentosus which was earlier not considered as a lentil taxa has been included along with Lens lamottei. This review throws light not only on the origin of lentils but also on how the phylogenetic relationships amongst wild and cultivated lentils keep on changing with advances in molecular markers. Better understanding of the relationships amongst wild germplasm will assist introgression of favourable genes into lentils breeding program.


1 - Deshbandhu College, University of Delhi, Botany, Kalkaji, New Delhi, Delhi, Delhi, 110019, India

Keywords:
Molecular phylogeny
Lens
Seed surface architecture
Molecular markers.

Presentation Type: Oral Paper
Number:
Abstract ID:627
Candidate for Awards:None


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