Latest from GCP

In semi-arid regions, particularly in the Sahel, water and high-temperature stress are serious constraints for groundnut production. Understanding of combined effects of heat and drought on physiological traits, yield and its attributes is of special significance for improving groundnut productivity. Two hundred and sixty-eight groundnut genotypes were evaluated in four trials under both intermittent drought and fully irrigated conditions, two of the trial being exposed to moderate temperature, while the two other trials were exposed to high temperature. The objectives were to analyse the component of the genetic variance and their interactions with water treatment, year and environment (temperature) for [...]

As a quantitatively inherited trait related to high yield potential, grain weight (GW) development in wheat is constrained by abiotic stresses such as limited water supply and high temperature. Data from a doubled haploid population, derived from a cross of (Hanxuan 10 × Lumai 14), grown in four environments were used to explore the genetic basis of GW developmental behavior in unconditional and conditional quantitative trait locus (QTL) analyses using a mixed linear model. Thirty additive QTLs and 41 pairs of epistatic QTLs were detected, and were more frequently observed on chromosomes 1B, 2A, 2D, 4A, 4B and 7B. No [...]

The warm-season legume, cowpea (Vigna unguiculata), is an important crop that performs well in marginal environments. The effects of high temperature are among the most substantial challenges faced by growers of cowpea. Heat injury during late reproductive development sterilizes pollen such that no fruit is set. To study the inheritance of this trait and to deliver resources to breed cowpea with enhanced tolerance to heat, we performed a quantitative trait locus (QTL) analysis using 141 individuals from a recombinant inbred population made from a cross between cowpea varieties CB27 and IT82E-18. Five regions, which represent 9 % of the cowpea [...]

Chromosome segment substitution lines (CSSLs) are powerful QTL mapping populations that have been used to elucidatethe molecular basis of interesting traits of wild species. Cultivated peanut is an allotetraploid with limited genetic diversity.Capturin…

Chickpea (Cicer arietinum) is the second most widely grown legume crop after soya bean, accounting for a substantial proportion of human dietary nitrogen intake and playing a crucial role in food security in developing countries. We report the ~738-Mb draft whole genome shotgun sequence of CDC Frontier, a kabuli chickpea variety, which contains an estimated 28,269 genes. Resequencing and analysis of 90 cultivated and wild genotypes from ten countries identifies targets of both breeding-associated genetic sweeps and breeding-associated balancing selection. Candidate genes for disease resistance and agronomic traits are highlighted, including traits that distinguish the two main market classes of [...]