ArticleScientific reports2024
Phenotypic diversity and population structure of Pecan (Carya illinoinensis) collections reveals geographic patterns.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Variation in seed and kernel oil characteristics of wild Litsea cubeba influenced by major ecological factors across southern China.BMC plant biology · 2026Article
- Beyond the kernel: integrative phytochemical profiling and metabolic synergy ofFrontiers in nutrition · 2026Review
- Article
- Screening olour mango half-sib progenies for dwarfing, vigour, and climate resilience.Scientific reports · 2025Article
- Stress Regulatory capabilities discovered in late embryogenesis abundant (LEA) proteins expressed during pecan (Carya illinoinensis) kernel development.BMC genomics · 2025Article
- Genome-wide association studies revealed partial genetic links between early vigour and precocity in macadamia.Horticulture research · 2025Article
- Comprehensive Evaluation of Five Pecan (Plants (Basel, Switzerland) · 2025Article
- Genetic Diversity of a WildCurrent issues in molecular biology · 2025Article
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6 authors.
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Abstract
Pecan (Carya illinoinensis) is an economically important nut crop known for its genetic diversity and adaptability to various climates. Understanding the growth variability, phenological traits, and population structure of pecan populations is crucial for breeding programs and conservation. In this study, plant growth and phenological traits were evaluated over three consecutive seasons (2015-2017) for 550 genotypes from 26 provenances. Significant variations in plant height, stem diameter, and budbreak were observed among provenances, with Southern provenances exhibiting faster growth and earlier budbreak compared to Northern provenances. Population structure analysis using SNP markers revealed eight distinct subpopulations, reflecting genetic differentiation among provenances. Notably, Southern Mexico collections formed two separate clusters, while Western collections, such as 'Allen 3', 'Allen 4', and 'Riverside', were distinguished from others. 'Burkett' and 'Apache' were grouped together due to their shared maternal parentage. Principal component analysis and phylogenetic tree analysis further supported subpopulation differentiation. Genetic differentiation among the 26 populations was evident, with six clusters highly in agreement with the subpopulations identified by STRUCTURE and fastSTRUCTURE. Principal components analysis (PCA) revealed distinct groups, corresponding to subpopulations identified by genetic analysis. Discriminant analysis of PCA (DAPC) based on provenance origin further supported the genetic structure, with clear separation of provenances into distinct clusters. These findings provide valuable insights into the genetic diversity and growth patterns of pecan populations. Understanding the genetic basis of phenological traits and population structure is essential for selecting superior cultivars adapted to diverse environments. The identified subpopulations can guide breeding efforts to develop resilient rootstocks and contribute to the sustainable management of pecan genetic resources. Overall, this study enhances our understanding of pecan genetic diversity and informs conservation and breeding strategies for the long-term viability of pecan cultivation.
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