Genetic structure and ecological niche space of lentil's closest wild relative, Lens orientalis (Boiss.) Schmalh.

• Autores: Guerra-García, Azalea; Trněný, Oldřich; Brus, Jan; Renzi Pugni, Juan Pablo; Kumar, Shiv; Bariotakis, Michael; Coyne, Clarice; Chitikineni, Anu; Bett, Kirstin E.; Varshney, Rajeev; Pirintsos, Stergios; Berger, Jens; von Wettberg, Eric J.B.; Smýkal, Petr
• Año de publicación: 2024
• Idioma: inglés
• Tipo de recurso: artículo
• Fuente: Plant Biology 26 (2) : 232-244. (March 2024)
• Materia: Lens; Lentils; Genetic Diversity (resource); Ecological Niche Modelling; Crop Wild Relatives; Lenteja; Diversidad genética (recurso); Modelización del Nicho Ecológico; Especie Silvestre Afín a las Plantas Cultivadas; Lens orientalis
• Institución: Instituto Nacional de Tecnología Agropecuaria

Crops arose from wild ancestors and to understand their domestication it is essential to compare the cultivated species with their crop wild relatives. These represent an important source of further crop improvement, in particular in relation to climate change. Although there are about 58,000 Lens accessions held in genebanks, only 1% are wild. We examined the geographic distribution and genetic diversity of the lentil's immediate progenitor L. orientalis. We used Genotyping by Sequencing (GBS) to identify and characterize differentiation among accessions held at germplasm collections. We then determined whether genetically distinct clusters of accessions had been collected from climatically distinct locations. Of the 195 genotyped accessions, 124 were genuine L. orientalis with four identified genetic groups. Although an environmental distance matrix was significantly correlated with geographic distance in a Mantel test, the four identified genetic clusters were not found to occupy significantly different environmental space. Maxent modelling gave a distinct predicted distribution pattern centred in the Fertile Crescent, with intermediate probabilities of occurrence in parts of Turkey, Greece, Cyprus, Morocco, and the south of the Iberian Peninsula with NW Africa. Future projections did not show any dramatic alterations in the distribution according to the climate change scenarios tested. We have found considerable diversity in L. orientalis, some of which track climatic variability. The results of the study showed the genetic diversity of wild lentil and indicate the importance of ongoing collections and in situ conservation for our future capacity to harness the genetic variation of the lentil progenitor.
EEA Hilario Ascasubi
Fil: Guerra-García, Azalea. University of Saskatchewan. Department of Plant Sciences; Canadá
Fil: Guerra-García, Azalea. Instituto Politécnico Nacional. Centro de Investigación y de Estudios Avanzados. Departamento de Biotecnología y Bioquímica; México
Fil: Trněný, Oldřich. Agriculture Research Ltd; República Checa
Fil: Brus, Jan. Palacký University. Faculty of Sciences. Department of Geoinformatics; República Checa
Fil: Renzi Pugni, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina
Fil: Kumar, Shiv. International Center for Agricultural Research in the Dry Areas (ICARDA); Marruecos
Fil: Bariotakis, Michael. University of Crete. Department of Biology; Grecia
Fil: Bariotakis, Michael. Botanical Garden Rethymnon; Grecia
Fil: Coyne, Clarice. USDA-ARS. Western Regional Plant Introduction Station; Estados Unidos
Fil: Chitikineni, Anu. International Crop Research Institute for the semi-Arid Tropics (ICRISAT); India
Fil: Bett, Kirstin E. University of Saskatchewan. Department of Plant Sciences; Canadá
Fil: Varshney, Rajeev. International Crop Research Institute for the semi-Arid Tropics (ICRISAT); India
Fil: Varshney, Rajeev. Murdoch University; Australia
Fil: Pirintsos, Stergios. University of Crete. Department of Biology; Grecia
Fil: Berger, Jens. CSIRO Plant Industry; Australia
Fil: von Wettberg, Eric J.B. University of Vermont. Gund Institute for the Environment. Department of Plant and Soil Sciences; Estados Unidos
Fil: Smýkal, Petr. Palacký University. Faculty of Sciences. Department of Botany; República Checa