ArticleGenome biology2021
A genome variation map provides insights into the genetics of walnut adaptation and agronomic traits.
Article in Genome biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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45 citing papers in PubMed, 86 citations in OpenAlex.
- WalnutGDB: an integrated genomic portal for advancing Juglandaceae research and breeding.Horticulture research · 2026Article
- Genomic divergence, adaptation, and the genetic basis of quality traits in ancient walnut landraces and wild relatives.Horticulture research · 2026Article
- Genetic origins and climate-induced erosion in economically important Asian walnuts.Conservation biology : the journal of the Society for Conservation Biology · 2026Article
- Resolving sampling and population-size biases in domestication genomics supports a South Asian origin of walnuts.Genome biology · 2026Article
- Tracing the Holocene hybrid origin of cultivated walnut in southwestern China.Forestry research · 2026Article
- Genome-Wide, High-Density Genotyping Approaches for Plant Germplasm Characterisation (Methods and Applications).International journal of molecular sciences · 2025Review
- Integrated chloroplast genomics and whole-genome resequencing reveals demographic history and selection signatures of black walnuts.The plant genome · 2025Article
- Analysis of the IPT gene family reveals the critical role of the JrERF113-JrIPT1 module in cold resistance of walnut (Juglans regia).BMC plant biology · 2025Article
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- Walnut genome editing: an optimized CRISPR/Cas9 platform with superior genotypes and endogenous promoters.Horticulture research · 2025Article
- Rootstock of distant hybrid activates transcription factors of scion cultivar to promote growth and yield in walnut.Plant biotechnology journal · 2025Article
- Genomic insights into deleterious mutations and their impact on agronomic traits during pear domestication.Horticulture research · 2025Article
- Metagenomic analysis reveals Bacillus cereus OTU8977 as a potential probiotic in promoting walnut growth.BMC plant biology · 2025Article
- Genomic insights into genome-wide heterozygosity and its impact on walnut adaptive evolution and improvement.Molecular breeding : new strategies in plant improvement · 2025Article
- Unveiling the heterosis pattern of modern maize breeding in Southwest China through population structure and genetic diversity analysis.BMC plant biology · 2025Article
- Characterizing the Phenolic Compounds in Iron Walnut Oil (Foods (Basel, Switzerland) · 2025Article
- Whole-genome sequencing revealed genetic basis of diterpenoid alkaloid difference in Aconitum vilmorinianum.BMC plant biology · 2025Article
- Escaping endogenous miRNA post-transcriptional silencing ofFrontiers in plant science · 2025Article
- Genetic analysis of wild walnuts in Xinjiang based on whole-genome resequencing.Frontiers in plant science · 2025Article
- Comprehensive Evaluation of CrypticGenes · 2024Article
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Authors and funding
16 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCommon walnut (Juglans regia L.) is one of the top four most consumed nuts in the world due to its health benefits and pleasant taste. Despite its economic importance, the evolutionary history and genetic control of its adaptation and agronomic traits remain largely unexplored.
resultsWe report a comprehensive walnut genomic variation map based on whole-genome resequencing of 815 walnut accessions. Evolutionary analyses suggest that Chinese J. regia diverged from J. sigillata with extensive hybridizations after the split of the two species. In contrast to annual crops, the genetic diversity and heterozygous deleterious mutations of Chinese common walnut trees have continued to increase during the improvement process. Selective sweep analyses identify 902 genes uniquely selected in the improved common walnut compared to its progenitor population. Five major-effect loci are identified to be involved in walnut adaptations to temperature, precipitation, and altitude. Genome-wide association studies reveal 27 genomic loci responsible for 18 important agronomic traits, among which JrFAD2 and JrANR are the potentially major-effect causative genes controlling linoleic acid content and color of the endopleura of the nut, respectively.
conclusionsThe largest genomic resource for walnuts to date has been generated and explored in this study, unveiling their evolutionary history and cracking the genetic code for agronomic traits and environmental adaptation of this economically crucial crop tree.
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