Wild relatives of plants as sources for the development of abiotic stress tolerance in plants

Hossain, Akbar; Maitra, Sagar; Pramanick, Biswajit; Bhutia, Karma Landup; Ahmad, Zahoor; Moulik, Debjyoti; Syed, Md. Abu; Shankar, Tanmoy; Adeel, Muhammad; Hassan, Mohamed M.; Aftab, Tariq

doi:10.1016/b978-0-323-85665-2.00011-x

Cited by 28 publications

(10 citation statements)

References 293 publications

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“…The CWR priority inventory contains several food crops that are economically important both regionally and globally that were identified by Vincent et al (2013). The exploitation value of CWR is annually about $115 billion per year worldwide (Hossain et al, 2022). Cash crops such as cotton (Gossypium hirsutum L.) and coffee (both Coffea arabica L. and Coffea canephora Pierre ex A. Froehner) make a vital contribution to the overall gross domestic product in Sub-Saharan Africa (Coleman & Thigpen, 1993;Gilbert et al, 2013).…”

Section: Crop Sciencementioning

confidence: 99%

Conservation of crop wild relative diversity in Northeast Africa: Checklist and prioritization

Aldow,

Brehm,

Kordofani

et al. 2023

Crop Science

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Crop wild relatives (CWR) are an important source of genetic diversity useful for crop improvement. This study was conducted to create both a checklist and priority inventory of CWR in Northeast Africa. A partial CWR regional checklist was obtained by combining the floras of Djibouti, Ethiopia and Eritrea, Somalia, South Sudan, and Sudan for priority crop genera. It includes 1,020 taxa belonging to 39 families and 130 genera, about 80% of these taxa are native. The families with the highest number of CWR were the Poaceae (334) and Fabaceae (202). The checklist was then prioritized based on the social and economic value of the related crops using the Food and Agriculture Organization Corporate Statistical Database (FAOSTAT), and the potential use of CWR for crop improvement using the crop gene pool or taxon group concepts. These criteria were applied to the checklist via a serial method to generate a prioritized inventory of 97 CWR taxa belonging to 19 families and 44 genera. Forty‐three percent of these taxa occur in more than two countries and additionally 32% in Eritrea and Ethiopia, 18% in Sudan and South Sudan and 7% in Somalia. For crop improvement, 20% of the taxa have confirmed uses, 23% have recorded potential uses, and 28% have both confirmed and potential uses. This prioritized list includes important CWR taxa related to regionally important food crops such as sorghum and teff, as well as providing a foundation for further conservation studies by conservationists and breeders in this region and worldwide.This article is protected by copyright. All rights reserved

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Section: Crop Sciencementioning

confidence: 99%

Conservation of crop wild relative diversity in Northeast Africa: Checklist and prioritization

Aldow,

Brehm,

Kordofani

et al. 2023

Crop Science

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“…Developing heat stress (HS) tolerant varieties could be an effective and economical way to mitigate the negative impact of heat stress on crop quality. Wild relatives and landraces serve as valuable sources of heat stress-tolerant genes [17], [18]. Moreover, heat-stress tolerance is known to be polygenic and quantitative in nature (Blum, 1988).…”

Section: Introductionmentioning

confidence: 99%

Unlocking the Grain Quality Enigma: A KASP-Driven Voyage Through Bread Wheat's Quantitative Trait Nucleotides Under Heat Adversity

Bashir,

Budhlakoti,

Pradhan

et al. 2024

Preprint

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Heat stress is a critical factor affecting global wheat production and productivity. In this study, out of 500 studied accessions a diverse panel of 126 wheat genotypes grown under twelve distinct environmental conditions was analyzed. Using 35K single-nucleotide polymorphism (SNP) genotyping assays and trait data on five biochemical parameters, including grain protein content (GPC), grain amylose content (GAC), grain total soluble sugars (TSS), grain iron (Fe), and zinc (Zn) content, six multi-locus GWAS models were employed for association analysis. This revealed 67 significantly associated QTNs linked to grain quality parameters, explaining phenotypic variations ranging from 3–44% under heat stress conditions. By considering the results in consensus to at least three GWAS models and three locations, the final QTNs were reduced to 17, with 14 being novel findings. Notably, two novel markers, AX-94461119 (chromosome 6A) and AX-95220192 (chromosome 7D), associated with grain iron and zinc, respectively, were validated through KASP approach. Candidate genes, such as chaperonin Cpn60/GroEL/TCP-1 family, P-loop containing nucleoside triphosphate hydrolases (NTPases), Bowman-Birk type proteinase inhibitor (BBI), and NPSN13 protein, were identified from the associated genomic regions, which could be potentially targeted for improving quality traits and heat tolerance in wheat.

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“…Crop wild relatives have emerged as predominant players in several crop improvement programmes due to an amplitude of resistance traits bestowed to them [ 8 , 9 ]. Many pigeonpea wild relatives have been identified to possess a range of important traits, including pod borer resistance [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Cajanus platycarpus Flavonoid 3′5′ Hydroxylase_2 (CpF3′5′H_2) Confers Resistance to Helicoverpa armigera by Modulating Total Polyphenols and Flavonoids in Transgenic Tobacco

Tyagi

Rathinam

Dokka

et al. 2023

IJMS

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Pod borer Helicoverpa armigera, a polyphagus herbivorous pest, tremendously incurs crop damage in economically important crops. This necessitates the identification and utility of novel genes for the control of the herbivore. The present study deals with the characterization of a flavonoid 3′5′ hydroxylase_2 (F3′5′H_2) from a pigeonpea wild relative Cajanus platycarpus, possessing a robust chemical resistance response to H. armigera. Though F3′5′H_2 displayed a dynamic expression pattern in both C. platycarpus (Cp) and the cultivated pigeonpea, Cajanus cajan (Cc) during continued herbivory, CpF3′5′H_2 showed a 4.6-fold increase vis a vis 3-fold in CcF3′5′H_2. Despite similar gene copy numbers in the two Cajanus spp., interesting genic and promoter sequence changes highlighted the stress responsiveness of CpF3′5′H_2. The relevance of CpF3′5′H_2 in H. armigera resistance was further validated in CpF3′5′H_2-overexpressed transgenic tobacco based on reduced leaf damage and increased larval mortality through an in vitro bioassay. As exciting maiden clues, CpF3′5′H_2 deterred herbivory in transgenic tobacco by increasing total flavonoids, polyphenols and reactive oxygen species (ROS) scavenging capacity. To the best of our knowledge, this is a maiden attempt ascertaining the role of F3′5′H_2 gene in the management of H. armigera. These interesting leads suggest the potential of this pivotal branch-point gene in biotic stress management programs.

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Wild relatives of plants as sources for the development of abiotic stress tolerance in plants

Cited by 28 publications

References 293 publications

Conservation of crop wild relative diversity in Northeast Africa: Checklist and prioritization

Conservation of crop wild relative diversity in Northeast Africa: Checklist and prioritization

Unlocking the Grain Quality Enigma: A KASP-Driven Voyage Through Bread Wheat's Quantitative Trait Nucleotides Under Heat Adversity

Cajanus platycarpus Flavonoid 3′5′ Hydroxylase_2 (CpF3′5′H_2) Confers Resistance to Helicoverpa armigera by Modulating Total Polyphenols and Flavonoids in Transgenic Tobacco

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