Utilizing Wild Cajanus platycarpus, a Tertiary Genepool Species for Enriching Variability in the Primary Genepool for Pigeonpea Improvement

Sharma, S. B.; Paul, Pronob J.; Kumar, C Sameer; Nimje, Chetna

doi:10.3389/fpls.2020.01055

Cited by 12 publications

(11 citation statements)

References 37 publications

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“…Furthermore, the positive correlation of Fe with all other nutrients offers opportunities for reciprocal nutrient improvement. For Ca improvement, the selection can be done for Mg, Mn, and Fe or against K. This relation stays analogous to the results of Sharma et al (2020) for the association of Ca with Fe and Mg and Gerrano et al (2019) for Ca with K.…”

Section: Discussionmentioning

confidence: 71%

“…The nutrients, Fe and Zn, are highly positively correlated with each other, and, hence, their improvement together stays significant. This correlation existed across several legumes, such as pigeonpea ( Mishra and Acharya, 2018 ; Sharma et al, 2020 ), common bean ( Celmeli and Sari, 2018 ), cowpea ( Dakora and Belane, 2019 ), and green gram ( Singh et al, 2018 ). Furthermore, the positive correlation of Fe with all other nutrients offers opportunities for reciprocal nutrient improvement.…”

Section: Discussionmentioning

confidence: 96%

“…This necessitates their subsequent improvement through intra or inter-specific hybridization. To enhance the variability for Fe and Zn in the primary gene pool, Sharma et al (2020) attempted interspecific crosses with Cajanus platycarpus . Despite this, a good response to agronomic biofortification for Fe and Zn was reported in pigeonpea ( Gopalakrishnan et al, 2016 ; Hanumanthappa et al, 2018 ; Behera et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

“…Nutrient improvement in pigeonpea was done utilizing few wild species. Reddy et al (1979) utilized wild species Atylosia from the tertiary gene pool to develop high protein lines, while Sharma et al (2020) utilized Cajanus platycarpus to broaden the variability available for agronomic and grain nutritional traits. Saxena et al (1987) identified high protein lines (HPL 2, HPL 7, HPL 40, and HPL 51) with 27–29% protein from five intergeneric crosses and mentioned the variable association between seed size and protein across crosses.…”

Section: Introductionmentioning

confidence: 99%

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Grain Nutrients Variability in Pigeonpea Genebank Collection and Its Potential for Promoting Nutritional Security in Dryland Ecologies

et al. 2022

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Pigeonpea, a climate-resilient legume, is nutritionally rich and of great value in Asia, Africa, and Caribbean regions to alleviate malnutrition. Assessing the grain nutrient variability in genebank collections can identify potential sources for biofortification. This study aimed to assess the genetic variability for grain nutrients in a set of 600 pigeonpea germplasms conserved at the RS Paroda Genebank, ICRISAT, India. The field trials conducted during the 2019 and 2020 rainy seasons in augmented design with four checks revealed significant differences among genotypes for all the agronomic traits and grain nutrients studied. The germplasm had a wider variation for agronomic traits like days to 50% flowering (67–166 days), days to maturity (112–213 days), 100-seed weight (1.69–22.17 g), and grain yield per plant (16.54–57.93 g). A good variability was observed for grain nutrients, namely, protein (23.35–29.50%), P (0.36–0.50%), K (1.43–1.63%), Ca (1,042.36–2,099.76 mg/kg), Mg (1,311.01–1,865.65 mg/kg), Fe (29.23–40.98 mg/kg), Zn (24.14–35.68 mg/kg), Mn (8.56–14.01 mg/kg), and Cu (7.72–14.20 mg/kg). The germplasm from the Asian region varied widely for grain nutrients, and the ones from African region had high nutrient density. The significant genotype × environment interaction for most of the grain nutrients (except for P, K, and Ca) indicated the sensitivity of nutrient accumulation to the environment. Days to 50% flowering and days to maturity had significant negative correlation with most of the grain nutrients, while grain yield per plant had significant positive correlation with protein and magnesium, which can benefit simultaneous improvement of agronomic traits with grain nutrients. Clustering of germplasms based on Ward.D2 clustering algorithm revealed the co-clustering of germplasm from different regions. The identified top 10 nutrient-specific and 15 multi-nutrient dense landraces can serve as promising sources for the development of biofortified lines in a superior agronomic background with a broad genetic base to fit the drylands. Furthermore, the large phenotypic data generated in this study can serve as a raw material for conducting SNP/haplotype-based GWAS to identify genetic variants that can accelerate genetic gains in grain nutrient improvement.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Grain Nutrients Variability in Pigeonpea Genebank Collection and Its Potential for Promoting Nutritional Security in Dryland Ecologies

et al. 2022

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“…In this regard, recently, in a pigeon pea breeding program utilizing wild Cajanus platycarpus sp., a stable promising trait-specific introgression line (IL) CPL 87119 has been identified. It showed higher potential for yield and nutrient-rich traits with a broad genetic base [ 21 ]. Efforts are required in this direction to increase the quality of other underexploited legumes.…”

Section: Introductionmentioning

confidence: 99%

Developments and Prospects in Imperative Underexploited Vegetable Legumes Breeding: A Review

Dhaliwal

Talukdar

Gautam

et al. 2020

IJMS

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Vegetable legumes are an essential source of carbohydrates, vitamins, and minerals, along with health-promoting bioactive chemicals. The demand for the use of either fresh or processed vegetable legumes is continually expanding on account of the growing consumer awareness about their well-balanced diet. Therefore, sustaining optimum yields of vegetable legumes is extremely important. Here we seek to present d etails of prospects of underexploited vegetable legumes for food availability, accessibility, and improved livelihood utilization. So far research attention was mainly focused on pulse legumes’ performance as compared to vegetable legumes. Wild and cultivated vegetable legumes vary morphologically across diverse habitats. This could make them less known, underutilized, and underexploited, and make them a promising potential nutritional source in developing nations where malnutrition still exists. Research efforts are required to promote underexploited vegetable legumes, for improving their use to feed the ever-increasing population in the future. In view of all the above points, here we have discussed underexploited vegetable legumes with tremendous potential; namely, vegetable pigeon pea (Cajanus cajan), cluster bean (Cyamopsis tetragonoloba), winged bean (Psophocarpus tetragonolobus), dolichos bean (Lablab purpureus), and cowpea (Vigna unguiculata), thereby covering the progress related to various aspects such as pre-breeding, molecular markers, quantitative trait locus (QTLs), genomics, and genetic engineering. Overall, this review has summarized the information related to advancements in the breeding of vegetable legumes which will ultimately help in ensuring food and nutritional security in developing nations.

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Biochemical basis of resistance to pod borer (Helicoverpa armigera) in Australian wild relatives of pigeonpea

et al. 2021

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The domestication of pigeonpea has severely impacted the intrinsic host‐plant resistance (HPR) to pest and diseases, particularly pod borer (Helicoverpa armigera hubner). This study with 41 Australian wild Cajanus genotypes and interspecific hybrids demonstrated a high level of resistance to H. armigera in the accessions of Cajanus acutifolius, C. latisepalus, C. lanceolatus, C. pubescens, and C. reticulatus var. reticulatus. Significant variation in herbivory development and mortality (P < 0.001) was observed in the wild accessions and their hybrids in response to feeding on leaves. A strong positive relationship (R2 = 0.69, P < 0.001) between total phenolic compounds (TPC) and the HPR was observed. Australian wild genotypes demonstrated the role of TPC and the absence of certain flavonoids such as rutin and quercetin in resistant genotypes. The detached leaf bioassay technique separated the wild and domesticated accessions into wild resistant, with herbivory weight difference (HWD) (Day 7–Day 1) ranging between −27 ‐ 104 mg, wild susceptible, with HWD ranging between 124 ‐ 207 mg and domesticated susceptible, with HWD ranging from 208 ‐ 300 mg. Similarly, based on TPC, accessions were also categorised into wild high TPC, with TPC ranging between 32.3 ‐ 42.5 GAE mg/g DW, and wild low TPC had only 17.2–24.8 GAE mg/g DW. Low TPC concentrations were found in domesticated pigeonpea, with 10.7–17.6 GAE mg/g DW. The presence of very high concentrations of the flavone isoorientin, an important antioxidant implicated in the intracellular defence mechanism of cancer therapy, was identified for the first time in wild species of pigeonpea.

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Utilizing Wild Cajanus platycarpus, a Tertiary Genepool Species for Enriching Variability in the Primary Genepool for Pigeonpea Improvement

Cited by 12 publications

References 37 publications

Grain Nutrients Variability in Pigeonpea Genebank Collection and Its Potential for Promoting Nutritional Security in Dryland Ecologies

Grain Nutrients Variability in Pigeonpea Genebank Collection and Its Potential for Promoting Nutritional Security in Dryland Ecologies

Developments and Prospects in Imperative Underexploited Vegetable Legumes Breeding: A Review

Biochemical basis of resistance to pod borer (Helicoverpa armigera) in Australian wild relatives of pigeonpea

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