Pea

Warkentin, Thomas D.; Smýkal, Petr; Coyne, Clarice J.; Weeden, N. F.; Domoney, Claire; Bing, Dengjin; Leonforte, Antonio; Zong, Xuxiao; Dixit, G. P.; Boroș, L.; McPhee, Kevin; McGee, Rebecca J.; Burstin, Judith; Ellis, Noel

doi:10.1007/978-1-4939-2797-5_2

Cited by 36 publications

(32 citation statements)

References 154 publications

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“…Genetic improvement of pea for heat and drought resistance is a promising approach to stabilize yield under environmental stresses. Pea germplasm has a wide range of diversity in morpho-anatomical, biochemical and physiological characteristics [8,9]. Among other things, such diversity has been explored to identify traits associated with heat response [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Mapping for Heat Stress Responsive Traits in Field Pea

Tafesse

Gali

Lachagari

et al. 2020

IJMS

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Environmental stress hampers pea productivity. To understand the genetic basis of heat resistance, a genome-wide association study (GWAS) was conducted on six stress responsive traits of physiological and agronomic importance in pea, with an objective to identify the genetic loci associated with these traits. One hundred and thirty-five genetically diverse pea accessions from major pea growing areas of the world were phenotyped in field trials across five environments, under generally ambient (control) and heat stress conditions. Statistical analysis of phenotype indicated significant effects of genotype (G), environment (E), and G × E interaction for all traits. A total of 16,877 known high-quality SNPs were used for association analysis to determine marker-trait associations (MTA). We identified 32 MTAs that were consistent in at least three environments for association with the traits of stress resistance: six for chlorophyll concentration measured by a soil plant analysis development meter; two each for photochemical reflectance index and canopy temperature; seven for reproductive stem length; six for internode length; and nine for pod number. Forty-eight candidate genes were identified within 15 kb distance of these markers. The identified markers and candidate genes have potential for marker-assisted selection towards the development of heat resistant pea cultivars.

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Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Mapping for Heat Stress Responsive Traits in Field Pea

Tafesse

Gali

Lachagari

et al. 2020

IJMS

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“…D omesticated pea ( Pisum sativum L.) is a major food legume in temperate cropping systems across Europe, Asia, and North America and a traditional protein crop in the East African highlands (Zohary et al, 2012). Pea is also grown for fodder and as a source of green seeds for processing, as well as a vegetable crop (e.g., snap pea) (Davies, 1993; Warkentin et al, 2015). Thanks to its symbiosis with nitrogen‐fixing bacteria and to its role as a break crop for pathogens and pests in cereal‐dominated cropping systems, pea is important in temperate agroecological systems.…”

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confidence: 99%

“…(domesticated pea endemic to East Africa and southern Arabia). For two recent treatments of Pisum taxonomy, see Warkentin et al (2015) and Ladizinsky and Abbo (2015). The common features to all the taxonomic systems proposed for Pisum are (i) the independent and distinct status of Pf, and (ii) the close genetic affinity between wild elatius , wild humile , and domesticated sativum forms.…”

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confidence: 99%

Drought Response and Genetic Diversity in Pisum fulvum, a Wild Relative of Domesticated Pea

et al. 2017

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Productivity of grain crops in semi‐arid environments is often affected by drought, which is likely to increase due to predicted climate changes. Wild pea (Pisum fulvum Sibth. & Smith, Pf) accessions sampled across its ecological amplitude in Israel (350–850 mm annual precipitation) were used to assess the genetic diversity for drought responses. We hypothesized that native species evolving under Eastern Mediterranean climate carry adaptive traits to cope with drought stress. Accessions were classified according to single‐nucleotide polymorphism variation pattern and habitat ecogeographic parameters. Significant differences were found between the accession groups, but grouping in both systems did not match. Subsequently, 52 Pf accessions and three domesticated pea (P. sativum L.) genotypes were evaluated during 2 yr under well‐watered (∼580 mm) and water‐limited (∼340 mm) treatments. Total dry matter, grain yield, harvest index, and average grain weight were higher in domesticated pea than wild Pf; however several Pf accessions exhibited lower drought susceptibility indices (i.e., greater stability across environments) than domesticated genotypes. Of special interest are a number of Pf genotypes in which low susceptibility to water stress was coupled with relatively high productivity. The sampling habitats of those low susceptibility–high productivity accessions are characterized by mild (400–530 mm) annual precipitation. Further sampling and evaluation of Pf from such locations may improve our understanding of pea drought adaptation and yield physiology.

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“…Drought, which has been the main abiotic stress targeted by legume improvement programmes [11], has crucial importance for most of these countries, because drought-prone environments are expected to become common throughout Southern Europe and Northern Africa and to expand northward and eastward into central Europe as a consequence of climate change [12].Field pea (Pisum sativum L.) has special interest for Southern Europe, where it displays higher grain yielding ability than other rain-fed cool-season grain legumes [13]. Further assets of this crop are moderately high rates of genetic yield gain [14,15], remarkable flexibility of utilization (as grain, hay, or silage) [16], and high energy value for animal nutrition [17]. Recent work highlighted high potential interest and farmers' appreciation for pea in North-African environments, too [16].Genomic selection (GS) aims to predict breeding values for complex, polygenic traits by means of a statistical model constructed from phenotypic and genome-wide marker data of a germplasm sample representing a genetic base (training set), which, if sufficiently predictive, can then be applied for extensive genome-enabled selection within the target genetic base [18].…”

mentioning

confidence: 99%

“…Field pea (Pisum sativum L.) has special interest for Southern Europe, where it displays higher grain yielding ability than other rain-fed cool-season grain legumes [13]. Further assets of this crop are moderately high rates of genetic yield gain [14,15], remarkable flexibility of utilization (as grain, hay, or silage) [16], and high energy value for animal nutrition [17]. Recent work highlighted high potential interest and farmers' appreciation for pea in North-African environments, too [16].…”

mentioning

confidence: 99%

Development and Proof-of-Concept Application of Genome-Enabled Selection for Pea Grain Yield under Severe Terminal Drought

Annicchiarico¹,

N.²,

Laouar

et al. 2020

IJMS

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Terminal drought is the main stress limiting pea (Pisum sativum L.) grain yield in Mediterranean environments. This study aimed to investigate genotype × environment (GE) interaction patterns, define a genomic selection (GS) model for yield under severe drought based on single nucleotide polymorphism (SNP) markers from genotyping-by-sequencing, and compare GS with phenotypic selection (PS) and marker-assisted selection (MAS). Some 288 lines belonging to three connected RIL populations were evaluated in a managed-stress (MS) environment of Northern Italy, Marchouch (Morocco), and Alger (Algeria). Intra-environment, cross-environment, and cross-population predictive ability were assessed by Ridge Regression best linear unbiased prediction (rrBLUP) and Bayesian Lasso models. GE interaction was particularly large across moderate-stress and severe-stress environments. In proof-of-concept experiments performed in a MS environment, GS models constructed from MS environment and Marchouch data applied to independent material separated top-performing lines from mid- and bottom-performing ones, and produced actual yield gains similar to PS. The latter result would imply somewhat greater GS efficiency when considering same selection costs, in partial agreement with predicted efficiency results. GS, which exploited drought escape and intrinsic drought tolerance, exhibited 18% greater selection efficiency than MAS (albeit with non-significant difference between selections) and moderate to high cross-population predictive ability. GS can be cost-efficient to raise yields under severe drought.

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Pea

Cited by 36 publications

References 154 publications

Genome-Wide Association Mapping for Heat Stress Responsive Traits in Field Pea

Genome-Wide Association Mapping for Heat Stress Responsive Traits in Field Pea

Drought Response and Genetic Diversity in Pisum fulvum, a Wild Relative of Domesticated Pea

Development and Proof-of-Concept Application of Genome-Enabled Selection for Pea Grain Yield under Severe Terminal Drought

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