eCite Digital Repository

Genetic basis for lentil adaptation to summer cropping in northern temperate environments

Citation

Haile, TA and Stonehouse, R and Weller, JL and Bett, KE, Genetic basis for lentil adaptation to summer cropping in northern temperate environments, The Plant Genome Article e20144. ISSN 1940-3372 (2021) [Refereed Article]


Preview
PDF
Pending copyright assessment - Request a copy
773Kb
  

DOI: doi:10.1002/tpg2.20144

Abstract

The continued success of lentil (Lens culinaris Medik.) genetic improvement relies on the availability of broad genetic diversity, and new alleles need to be identified and incorporated into the cultivated gene pool. Availability of robust and predictive markers greatly enhances the precise transfer of genomic regions from unadapted germplasm. Quantitative trait loci (QTL) for key phenological traits in lentil were located using a recombinant inbreed line (RIL) population derived from a cross between an Ethiopian landrace (ILL 1704) and a northern temperate cultivar (CDC Robin). Field experiments were conducted at Sutherland research farm in Saskatoon and at Rosthern, Saskatchewan, Canada during 2018 and 2019. A linkage map was constructed using 21,634 single nucleotide polymorphisms (SNPs) located on seven linkage groups (LGs), which correspond to the seven haploid chromosomes of lentil. Eight QTL were identified for six phenological traits. Flowering-related QTL were identified at two regions on LG6. FLOWERING LOCUS T (FT) genes were annotated within the flowering time QTL interval based on the lentil reference genome. Similarly, a major QTL for postflowering developmental processes was located on LG5 with several senescence-associated genes annotated within the QTL interval. The flowering time QTL was validated in a different genetic background indicating the potential use of the identified markers for marker-assisted selection to precisely transfer genomic regions from exotic germplasm into elite crop cultivars without disrupting adaptation.

Item Details

Item Type:Refereed Article
Keywords:adaptation, genetic improvement, genetic diversity, alleles, phenological traits
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Crop and pasture improvement (incl. selection and breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Integration of farm and forestry
UTAS Author:Weller, JL (Associate Professor Jim Weller)
ID Code:147586
Year Published:2021
Deposited By:Plant Science
Deposited On:2021-11-09
Last Modified:2021-11-29
Downloads:0

Repository Staff Only: item control page