ArticleFrontiers in plant science2026
Dissecting fruit weight and quality traits in Australian passion fruit through genetic linkage mapping and QTL analysis.
Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Passion fruit ( Methods: A bi-parental mapping population was developed from a cross between the Australian elite cultivars 'Tom's Special' and 'Lacey' and high-throughput genotyping was performed on the parents and 184 full-sib progeny to identify single-nucleotide polymorphisms (SNPs). Results and discussion: The genomic best linear unbiased prediction (GBLUP) analysis indicated low genomic heritability estimates ranging from 16.7% to 38.1%. Significant positive correlations were detected between fruit weight and total soluble solids for both observed and predicted values. The linkage map constructed with the Cross-Pollination (CP) model comprised 8223 SNP markers distributed across 9 chromosomes, spanning a total length of 706.35 cM. Using the interval mapping algorithm, five quantitative trait loci (QTLs) were identified based on observed phenotypic data. These QTLs were located on three linkage groups, accounting for 11.51% to 19.40% of the phenotypic variation, with the highest LOD score of 5.48. Functional gene annotations of significant QTLs revealed
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