ArticleThe Plant journal : for cell and molecular biology2020
A chromosome-scale reference genome of trifoliate orange (Poncirus trifoliata) provides insights into disease resistance, cold tolerance and genome evolution in Citrus.
Article in The Plant journal : for cell and molecular biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.
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57 citing papers in PubMed.
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- Comparative analysis of PRR receptors and R genes reveals structural and functional divergence between wild, ancestral, and commercial citrus species.BMC genomics · 2026Article
- Genetic architecture of the sieve element occlusion (SEO) family underlying potential regulatory mechanisms in citrus stress response.Journal of applied genetics · 2026Article
- Integrative morphological, palynological, and phylogenomic evidence supports the recognition ofFrontiers in plant science · 2026Article
- A haplotype-resolved chromatin landscape connects cis-regulatory variants to trait variation in Citrus.BMC genomics · 2025Article
- Identification of Chalcone Synthase Genes and Their Responses to Salt and Cold Stress inPlants (Basel, Switzerland) · 2025Article
- Exploring the Genetic Networks of HLB Tolerance in Citrus: Insights Across Species and Tissues.Plants (Basel, Switzerland) · 2025Article
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- Citrus genomes: past, present and future.Horticulture research · 2025Article
- Comparative genomics profiling of Citrus species reveals the diversity and disease responsiveness of the GLP pangenes family.BMC plant biology · 2025Article
- Transcriptomic and biochemical analysis of pummelo x finger lime hybrids in response to Huanglongbing (HLB).BMC plant biology · 2025Article
- Haplotype-resolved genome of a papeda provides insights into the geographical origin and evolution of Citrus.Journal of integrative plant biology · 2025Article
- The genetic architecture of gene expression regulation in aFrontiers in plant science · 2025Article
- The GRAS transcription factor PtrPAT1 ofHorticulture research · 2025Article
- Genotype-dependent responses to HIPV exposure in citrus: repression ofFrontiers in plant science · 2025Article
- An efficient multiplex approach to CRISPR/Cas9 gene editing in citrus.Plant methods · 2024Article
- The genomes of Australian wild limes.Plant molecular biology · 2024Article
- A Transcriptome Analysis ofInsects · 2024Article
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12 authors.
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Abstract
Trifoliate orange (Poncirus trifoliata), a deciduous close relative of evergreen Citrus, has important traits for citrus production, including tolerance/resistance to citrus greening disease (Huanglongbing, HLB) and other major diseases, and cold tolerance. It has been one of the most important rootstocks, and one of the most valuable sources of resistance and tolerance genes for citrus. Here we present a high-quality, chromosome-scale genome assembly of P. trifoliata. The 264.9-Mb assembly contains nine chromosomal pseudomolecules with 25 538 protein-coding genes, covering 97.2% of the estimated gene space. Comparative analyses of P. trifoliata and nine Citrus genomes revealed 605 species-specific genes and six rapidly evolving gene families in the P. trifoliata genome. Poncirus trifoliata has evolved specific adaptation in the C-repeat/DREB binding factor (CBF)-dependent and CBF-independent cold signaling pathways to tolerate cold. We identified candidate genes within quantitative trait loci for HLB tolerance, and at the loci for resistance to citrus tristeza virus and citrus nematode. Genetic diversity analysis of Poncirus accessions and Poncirus/Citrus hybrids shows a narrow genetic base in the US germplasm collection, and points to the importance of collecting and preserving more natural genetic variation. Two phenotypically divergent Poncirus accessions are found to be clonally related, supporting a previous conjecture that dwarf Flying Dragon originated as a mutant of a non-dwarfing type. The high-quality genome reveals features and evolutionary insights of Poncirus, and it will serve as a valuable resource for genetic, genomic and molecular research and manipulation in citrus.
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