Understanding Genome Structure Facilitates the Use of Wild Lentil Germplasm for Breeding: A Case Study with Shattering Loci

Objectives
  • Identify pod shattering QTLs in three lentil interspecific recombinant inbred line (RIL) populations in order to help breeders avoid these loci when introgressing beneficial loci.

  • Explore domestication loci within the context of genome structure using pod shattering as a case study.

Germplasm
Germplasm Genus
Lens
Germplasm Scientific Name
  • Lens culinaris
  • Lens orientalis
  • Lens odemensis
Germplasm Collection
  • LR-68 (L. orientalis IG 72643 x L. culinaris 3339-3)
  • LR-70 (Lens culinaris Eston x Lens odemensis IG 72623)
  • LR-86 (Lens culinaris Lupa x Lens orientalis BGE 016880)
Executive Summary

Plant breeders are generally reluctant to cross elite cultivars with wild relatives to introgress novel desirable traits due to associated negative traits, such as pod shattering. This results in a bottleneck that could be dealt with better understanding of the genomic locations of the gene(s) controlling this trait. In this study, we integrated information on parental genomes, pod shattering data from multiple environments, and high-density genetic linkage maps to identify pod shattering QTLs in three lentil interspecific recombinant inbred line (RIL) populations. The findings from this study will be of significant value for lentil breeders to strategically access novel superior alleles while minimizing the impact of pod shattering from wild parents.

Attribution
The following researchers and their organizations were involved in this work and should be credited for their role in any resulting or related publications.
Data Custodian
Kirstin E Bett
Collaborator
Didier Socquet-Juglard
Data Curator
Research Organization
Experiments
Experiments
Associated Datasets
Dataset
  • LR-68 (binned and unbinned maps)

    This is the genetic map that was the used when performing quantitative trait loci analysis. You can access all the methods, details and genotype matricies at the above link.

  • LR-68 Pod Shattering Dataset (XLSX, TSV)

    This dataset includes the shattering measurements for LR-68 lines over six site-years from 2018-2019.

Associated Datasets
Dataset
  • LR-70 (binned and unbinned maps)

    This is the genetic map that was the used when performing quantitative trait loci analysis. You can access all the methods, details and genotype matricies at the above link.

  • LR-70 Pod Shattering Dataset (XLSX, TSV)

    This dataset includes the pod shattering measurements for the LR-70 lines over six site-years from 2018-2019.

Associated Datasets
Dataset
  • LR-86 (binned and unbinned maps)

    This is the genetic map that was the used when performing quantitative trait loci analysis. You can access all the methods, details and genotype matricies at the above link.

  • LR-86 Pod Shattering Dataset (XLSX, TSV)

    This dataset includes the pod shattering measurements for the LR-86 lines over three site-years from 2016-2018.

Grant Activity
Title
EVOLVES: Enhancing the Value of Lentil Variation for Ecosystem Survival
Data Custodian
  • Kirstin E Bett
  • Albert Vandenberg
Research Organization
Funding Range

2019-2023