TABLE 6.
Candidate genes associated with abiotic stress adaptation, photoperiod-induced flowering, pod/seed size and quality traits in African yard long bean, adzuki bean, grass pea, horse Gram, lablab bean, moth bean, rice bean, and winged bean.
| Trait group | Crop | Putative candidate gene | References |
|---|---|---|---|
| Abiotic stress | Adzuki bean | VrLEA-2, VrLEA-40, VrLEA-47, and VrLEA-55 significantly upregulated under heat stress conditions in heat-tolerant genotypes | Singh et al. (2022) |
| Significantly higher expression (VaPIP2-1, VaPIP2-5) in root or variable expression (VaPIP1-1, VaPIP1-7) in leaf linked with water uptake under drought stress or in osmoregulation to transport substrates rather than water to protect plants from drought | Tayade et al. (2022b) | ||
| Grass pea | LsbHLHD4, LsbHLHD5, LsbHLHR6, LsbHLHD8, LsbHLHR14, LsbHLHR68, and LsbHLHR86 confer tolerance to salt stress | Alsamman et al. (2023) | |
| Horse Gram | Increased mRNA transcripts of WRKY TF genes in drought stressed plants reduces the adverse effect of drought on plants | Kiranmai et al., 2016 | |
| Lablab bean | Unfolded 17 genes associated with drought stress response, depending on the expression levels peaked after 6-, 8- or 10-day of dehydration | Yao et al. (2013) | |
| Moth bean | VacoCAT1 associated with drought tolerance | Meena et al. (2022) | |
| Catalase, cyt P450 monooxygenase, HSP 90 and HSP 70, protein kinases, oxidoreductase, dehydration responsive protein, universal stress protein and ferridoxin NADH oxidoreductase genes upregulated in stressed sample | Tiwari et al. (2018) | ||
| Pod/seed size and quality | African yard long bean | VuBGLU12 and VuMYB26b associated with pod fiber contents and pod shattering | Watcharatpong et al. (2020) |
| Moth bean | Most of the 12,839 unigenes having differential expression in the late stages of seed development, possibly involved in unique nutritive values of seeds; annotated 74,082 unigenes as TFs | Suranjika et al. (2022) | |
| Rice bean | Auxin and cytokinin pathways possibly regulate seed weight; 51 genes encoding SCF TIR1/AFB , Aux/IAA, ARFs, E3 ubiquitin transferase enzyme, and 26S proteasome with distinct expression dynamics between small and large-seeded lines | Verma A. et al. (2022) | |
| Winged bean | Transcriptome sequencing of leaves of two lines differing in condensed tannin (CT) revealed 5210 contigs involved in 229 different pathways; 1,235 contigs differentially expressed between high and low CT lines | Singh et al. (2017) |