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Genetic diversity, disease resistance, and environmental adaptation of Arachis duranensis L.: New insights from landscape genomics — Europe PMC PMID:38625995

Source: Europe PMC (en)
Original: https://europepmc.org/article/MED/38625995
DOI: 10.1371/journal.pone.0299992
License (as archived): CC0-1.0
Archived: 2026-10-06T18:48:10.566Z
SHA-256 of the archived text: d87124d3431258fe69c19ddc87f3b8ed97c2ce039d48d379b97bfc9168bfe392
Stable URL of this page: https://metraipolis.com/documento/dc_831663247b7d

How to cite

Genetic diversity, disease resistance, and environmental adaptation of Arachis duranensis L.: New insights from landscape genomics — Europe PMC PMID:38625995 — Europe PMC (en), https://europepmc.org/article/MED/38625995 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_831663247b7d (Metraipolis archive dc_831663247b7d, sha256 d87124d3431258fe69c19ddc87f3b8ed97c2ce039d48d379b97bfc9168bfe392)

BibTeX

@misc{dc831663247b7d,
  title = {Genetic diversity, disease resistance, and environmental adaptation of Arachis duranensis L.: New insights from landscape genomics — Europe PMC PMID:38625995},
  howpublished = {Europe PMC (en)},
  url = {https://europepmc.org/article/MED/38625995},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_831663247b7d; sha256 d87124d3431258fe69c19ddc87f3b8ed97c2ce039d48d379b97bfc9168bfe392},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: Europe PMC (en), https://europepmc.org/article/MED/38625995. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

The genetic diversity that exists in natural populations of Arachis duranensis, the wild diploid donor of the A subgenome of cultivated tetraploid peanut, has the potential to improve crop adaptability, resilience to major pests and diseases, and drought tolerance. Despite its potential value for peanut improvement, limited research has been focused on the association between allelic variation, environmental factors, and response to early (ELS) and late leaf spot (LLS) diseases. The present study implemented a landscape genomics approach to gain a better understanding of the genetic variability of A. duranensis represented in the ex-situ peanut germplasm collection maintained at the U.S. Department of Agriculture, which spans the entire geographic range of the species in its center of origin in South America. A set of 2810 single nucleotide polymorphism (SNP) markers allowed a high-resolution genome-wide characterization of natural populations. The analysis of population structure showed a complex pattern of genetic diversity with five putative groups. The incorporation of bioclimatic variables for genotype-environment associations, using the latent factor mixed model (LFMM2) method, provided insights into the genomic signatures of environmental adaptation, and led to the identification of SNP loci whose allele frequencies were correlated with elevation, temperature, and precipitation-related variables (q < 0.05). The LFMM2 analysis for ELS and LLS detected candidate SNPs and genomic regions on chromosomes A02, A03, A04, A06, and A08. These findings highlight the importance of the application of landscape genomics in ex situ collections of peanut and other crop wild relatives to effectively identify favorable alleles and germplasm for incorporation into breeding programs. We report new sources of A. duranensis germplasm harboring adaptive allelic variation, which have the potential to be utilized in introgression breeding for a single or multiple environmental factors, as well as for resistance to leaf spot diseases.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (retro-catalogo: tutto il sottoinsieme open access di Europe PMC con licenza libera).
Pubblicazione: PloS one, 2024 (prima pubblicazione 2024-04-16).
Identificativi: PMID 38625995 · PMCID PMC11020403 · DOI 10.1371/journal.pone.0299992.
Descrittori MeSH principali: Disease Resistance; Arachis.
Pagina: https://europepmc.org/article/MED/38625995 — https://doi.org/10.1371/journal.pone.0299992. Autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza dell'articolo dichiarata da Europe PMC: CC0 (la versione è indicata dall'editore sulla pagina). Abstract riportato senza modifiche al contenuto, con attribuzione; deposito marcato CC0.
Letto il 2026-10-06T17:12:53.384Z tramite l'API REST ufficiale di Europe PMC (EMBL-EBI), nel rispetto del robots.txt e del crawl-delay.