ArticleHeredity2021
Genetic diversity and selection signatures in maize landraces compared across 50 years of in situ and ex situ conservation.
Article in Heredity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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Who cites it
10 citing papers in PubMed.
- Factors affecting the genetic diversity ofFrontiers in plant science · 2026Review
- Individual plant genetics reveal the control of local adaptation in European maize landraces.BMC biology · 2025Article
- Article
- Genome-Wide Diversity in Lowland and Highland Maize Landraces From Southern South America: Population Genetics Insights to Assist Conservation.Evolutionary applications · 2024Article
- Morpho-Phenological, Chemical, and Genetic Characterization of Italian Maize Landraces from the Lazio Region.Plants (Basel, Switzerland) · 2024Article
- Genetic and Phenotypic Evaluation of European Maize Landraces as a Tool for Conservation and Valorization of Agrobiodiversity.Biology · 2024Article
- Morphological and Genetic Characterization of Maize Landraces Adapted to Marginal Hills in North-West Italy.Plants (Basel, Switzerland) · 2024Article
- Will a plant germplasm accession conserved in a genebank change genetically over time?Frontiers in plant science · 2024Review
- Genomic prediction of tocochromanols in exotic-derived maize.The plant genome · 2023Article
- Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Genomics-based, longitudinal comparisons between ex situ and in situ agrobiodiversity conservation strategies can contribute to a better understanding of their underlying effects. However, landrace designations, ambiguous common names, and gaps in sampling information complicate the identification of matching ex situ and in situ seed lots. Here we report a 50-year longitudinal comparison of the genetic diversity of a set of 13 accessions from the state of Morelos, Mexico, conserved ex situ since 1967 and retrieved in situ from the same donor families in 2017. We interviewed farmer families who donated in situ landraces to understand their germplasm selection criteria. Samples were genotyped by sequencing, producing 74,739 SNPs. Comparing the two sample groups, we show that ex situ and in situ genome-wide diversity was similar. In situ samples had 3.1% fewer SNPs and lower pairwise genetic distances (F
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