Molecular mapping and characterization of genes governing time to flowering, seed weight, and plant height in an intraspecific genetic linkage map of chickpea (Cicer arietinum)

Biochem Genet. 2013 Jun;51(5-6):387-97. doi: 10.1007/s10528-013-9571-3. Epub 2013 Jan 31.

Abstract

Drought is the major constraint to chickpea productivity worldwide. Utilizing early flowering genotypes and larger seed size have been suggested as strategies for breeding in drought zones. Therefore, this study aimed to identify potential markers linked to days-to-flowering, 100-seed weight, and plant height in a chickpea intraspecific F(2:3) population derived from the cross ILC3279 × ICCV2. A closely linked marker (TA117) on linkage group LG3 was identified for the days-to-flowering trait, explaining 33% of the variation. In relation to plant height, a quantitative trait loci (QTL) was located in LG3, close to the Ts5 marker, that explained 29% of phenotypic variation. A QTL for 100-seed weight located in LG4, close to TA176, explained 51% of variation. The identification of a locus linked both to high 100-seed weight and days-to-flowering may account for the correlation observed between these traits in this and other breeding attempts.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biomass*
  • Chromosome Mapping*
  • Chromosome Segregation / genetics
  • Cicer / anatomy & histology*
  • Cicer / genetics*
  • Crosses, Genetic
  • Flowers / genetics
  • Flowers / physiology*
  • Genes, Plant / genetics*
  • Genetic Markers
  • Quantitative Trait Loci / genetics
  • Quantitative Trait, Heritable
  • Seeds / genetics*
  • Species Specificity

Substances

  • Genetic Markers