ArticleBMC plant biology2012
Identification and characterization of resistance to cowpea aphid (Aphis craccivora Koch) in Medicago truncatula.
Article in BMC plant biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed, 59 citations in OpenAlex.
- Elucidation of genetic architecture for aphid resistance in alfalfa (Medicago sativa) via genome-wide association study.BMC plant biology · 2025Article
- Pyramiding aphid resistance genes into the elite cowpea variety, Zaayura, using marker-assisted backcrossing.Heliyon · 2024Article
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- Assessing the adaptive role of cannabidiol (CBD) inFrontiers in plant science · 2023Article
- Article
- Research Progress and Prospect of Alfalfa Resistance to Pathogens and Pests.Plants (Basel, Switzerland) · 2022Review
- Spatial distribution and community structure of microbiota associated with cowpea aphid (3 Biotech · 2022Article
- Insecticidal Activity of Extracts, Fractions, and Pure Molecules ofMolecules (Basel, Switzerland) · 2022Article
- AcDCXR Is a Cowpea Aphid Effector With Putative Roles in Altering Host Immunity and Physiology.Frontiers in plant science · 2020Article
- Additive and epistatic interactions between AKR and AIN loci conferring bluegreen aphid resistance and hypersensitivity in Medicago truncatula.Journal of experimental botany · 2019Article
- Genetic Structure of the Aphis craccivora (Hemiptera: Aphididae) From Thailand Inferred From Mitochondrial COI Gene Sequence.Journal of insect science (Online) · 2017Article
- Genetic Mapping of a Major Resistance Gene to Pea Aphid (Acyrthosipon pisum) in the Model Legume Medicago truncatula.International journal of molecular sciences · 2016Article
- Relationships Between Aphids (Insecta: Homoptera: Aphididae) and Slugs (Gastropoda: Stylommatophora: Agriolimacidae) Pests of Legumes (Fabaceae: Lupinus).Journal of insect science (Online) · 2016Article
- Temperature and Development Impacts on Housekeeping Gene Expression in Cowpea Aphid, Aphis craccivora (Hemiptera: Aphidiae).PloS one · 2015Article
- Characterization and genetic dissection of resistance to spotted alfalfa aphid (Therioaphis trifolii) in Medicago truncatula.Journal of experimental botany · 2013Article
- Genetic mapping and legume synteny of aphid resistance in African cowpea (Molecular breeding : new strategies in plant improvementArticle
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCowpea aphid (CPA; Aphis craccivora) is the most important insect pest of cowpea and also causes significant yield losses in other legume crops including alfalfa, beans, chickpea, lentils, lupins and peanuts. In many of these crops there is no natural genetic resistance to this sap-sucking insect or resistance genes have been overcome by newly emerged CPA biotypes.
resultsIn this study, we screened a subset of the Medicago truncatula core collection of the South Australian Research and Development Institute (SARDI) and identified strong resistance to CPA in a M. truncatula accession SA30199, compared to all other M. truncatula accessions tested. The biology of resistance to CPA in SA30199 plants was characterised compared to the highly susceptible accession Borung and showed that resistance occurred at the level of the phloem, required an intact plant and involved a combination of antixenosis and antibiosis. Quantitative trait loci (QTL) analysis using a F2 population (n = 150) from a cross between SA30199 and Borung revealed that resistance to CPA is controlled in part by a major quantitative trait locus (QTL) on chromosome 2, explaining 39% of the antibiosis resistance.
conclusionsThe identification of strong CPA resistance in M. truncatula allows for the identification of key regulators and genes important in this model legume to give effective CPA resistance that may have relevance for other legume crops. The identified locus will also facilitate marker assisted breeding of M. truncatula for increased resistance to CPA and potentially other closely related Medicago species such as alfalfa.
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