Genetic dissection of drought resistance based on root traits at the bud stage in common bean

Common bean as a potential crop for future food security: an overview of past, current and future contributions in genomics, transcriptomics, transgenics and proteomics

“…and Co-2) on the chromosomes Pv02, Pv04, Pv6, and Pv11, respectively. In addition to these examples, various gWAS conducted to identify genetic loci linked to drought-related traits and drought resistance in common bean[168][169][170][171]. Wu et al[171] identified 196 association loci containing 230 candidate SNPs as being linked to drought resistance in common bean.…”

“…In addition to these examples, various gWAS conducted to identify genetic loci linked to drought-related traits and drought resistance in common bean[168][169][170][171]. Wu et al[171] identified 196 association loci containing 230 candidate SNPs as being linked to drought resistance in common bean. on the other hand Leitão et al[172], determined a total of 133 SNPs for transpiration rate, net Co2 assimilation rate, stomatal conductance, chlorophylls a/b, carotenes, and xanthophyll contents.…”

Prospectus of Genomic Selection and Phenomics in Cereal, Legume and Oilseed Breeding Programs

“…Figure 7 shows the trend for publications using HTP and root phenomics, and it can be concluded that root phenotyping studies are lagging behind other phenomics studies. Roots play an essential role by directly influencing plant growth by regulating water and nutrient uptake, regulating drought stress, resisting soil-borne diseases, and maintaining the crop's yield and quality (Seck et al, 2020;Wu et al, 2021). The study of root system architecture (RSA) is challenging in situ compared to above-ground phenotyping.…”

“…A recent study using 137 soybean lines grown under rhizoboxes and phenotyped with two-dimensional imaging identified 10 QTLs controlling 15-20% variation for primary root diameter and total root length (Seck et al, 2020). As common bean is mainly grown under drought conditions, 196 QTLs were identified in 438 accessions for various root traits such as root length/weight, lateral root length, taproot length, root volume, root surface area, average root diameter, and lateral root number under drought conditions (Wu et al, 2021). This study provided the genetic basis for roots traits under drought conditions, which will ultimately improve common bean (Wu et al, 2021).…”

“…As common bean is mainly grown under drought conditions, 196 QTLs were identified in 438 accessions for various root traits such as root length/weight, lateral root length, taproot length, root volume, root surface area, average root diameter, and lateral root number under drought conditions (Wu et al, 2021). This study provided the genetic basis for roots traits under drought conditions, which will ultimately improve common bean (Wu et al, 2021). There was no major finding related to the study of genetic architecture for RSA traits for chickpea and groundnut, providing opportunities for adoption of root phenotyping in the coming years.…”