ArticleAnnals of botany2013
A study of the relationships of cultivated peanut (Arachis hypogaea) and its most closely related wild species using intron sequences and microsatellite markers.
Article in Annals of botany, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers.
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89 citing papers in PubMed.
- Peanut genome resource: a functional genomics platform for Arachis hypogaea.Plant & cell physiology · 2026Article
- Telomere-to-telomere genome assemblies and population resequencing of diploid and allotetraploid peanut varieties.Nature genetics · 2026Article
- Review
- Origin of small chromosome A08 and genome evolution of Arachis species.Nature communications · 2026Article
- Article
- Chromosomal variations and evolution in Arachis species revealed by single-copy FISH karyotyping.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- A single hybrid origin of cultivated peanut.The Plant journal : for cell and molecular biology · 2025Article
- Surprisingly frequent chromosomal instability in cultivated peanut.The Plant journal : for cell and molecular biology · 2025Article
- CRISPR-Mediated Genome Editing in Peanuts: Unlocking Trait Improvement for a Sustainable Future.Plants (Basel, Switzerland) · 2025Review
- Integrative genomics and genetics from evolutionary insights to precision breeding in peanuts (Arachis Hypogaea L.).Functional & integrative genomics · 2025Review
- A slow march along the South American Dry Diagonal: a multi-gene molecular phylogeny and biogeographical history of the peanut genus, Arachis L.Annals of botany · 2025Article
- Optimization of commercial SNP arrays and the generation of a high-efficiency GenoBaits Peanut 10K panel.Scientific reports · 2025Article
- Evolutionary Fate of the Opine Synthesis Genes in theBiology · 2024Article
- Integrating QTL mapping and transcriptome analysis to provide molecular insights into gynophore-pod strength in cultivated peanut (Frontiers in plant science · 2024Article
- Genome-wide analysis of UDP-glycosyltransferase gene family and identification of a flavonoid 7-O-UGT (AhUGT75A) enhancing abiotic stress in peanut (Arachis hypogaea L.).BMC plant biology · 2023Article
- Deciphering peanut complex genomes paves a way to understand its origin and domestication.Plant biotechnology journal · 2023Review
- Advances in omics research on peanut response to biotic stresses.Frontiers in plant science · 2023Review
- Marker-assisted introgression of wild chromosome segments conferring resistance to fungal foliar diseases into peanut (Frontiers in plant science · 2023Article
- Characterization of gene expression patterns in response to an orthotospovirus infection between two diploid peanut species and their hybrid.Frontiers in plant science · 2023Article
- Comparative Genomic and Expression Analysis Insight into Evolutionary Characteristics ofInternational journal of molecular sciences · 2022Article
29 more citing papers are in PubMed but not listed here.
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6 authors.
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Abstract
BACKGROUND AND
aimsThe genus Arachis contains 80 described species. Section Arachis is of particular interest because it includes cultivated peanut, an allotetraploid, and closely related wild species, most of which are diploids. This study aimed to analyse the genetic relationships of multiple accessions of section Arachis species using two complementary methods. Microsatellites allowed the analysis of inter- and intraspecific variability. Intron sequences from single-copy genes allowed phylogenetic analysis including the separation of the allotetraploid genome components.
methodsIntron sequences and microsatellite markers were used to reconstruct phylogenetic relationships in section Arachis through maximum parsimony and genetic distance analyses. KEY
resultsAlthough high intraspecific variability was evident, there was good support for most species. However, some problems were revealed, notably a probable polyphyletic origin for A. kuhlmannii. The validity of the genome groups was well supported. The F, K and D genomes grouped close to the A genome group. The 2n = 18 species grouped closer to the B genome group. The phylogenetic tree based on the intron data strongly indicated that A. duranensis and A. ipaënsis are the ancestors of A. hypogaea and A. monticola. Intron nucleotide substitutions allowed the ages of divergences of the main genome groups to be estimated at a relatively recent 2·3-2·9 million years ago. This age and the number of species described indicate a much higher speciation rate for section Arachis than for legumes in general.
conclusionsThe analyses revealed relationships between the species and genome groups and showed a generally high level of intraspecific genetic diversity. The improved knowledge of species relationships should facilitate the utilization of wild species for peanut improvement. The estimates of speciation rates in section Arachis are high, but not unprecedented. We suggest these high rates may be linked to the peculiar reproductive biology of Arachis.
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