ArticleBMC biology2022
The Musa troglodytarum L. genome provides insights into the mechanism of non-climacteric behaviour and enrichment of carotenoids.
Article in BMC biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed.
- Going wild in banana breeding enables Fusarium-resistant hybrids with improved fruit quality.Nature communications · 2026Article
- Transcriptomics and Gene Family Identification of Cell Wall-Related Differentially Expressed Genes RevealPlants (Basel, Switzerland) · 2025Article
- Ginger genome reveals the SMPED1 gene causing sex-phase synchrony and outcrossing in a flowering plant.Nature plants · 2025Article
- Banana breeding by genome design.Journal of integrative plant biology · 2025Review
- Multi-omics profiling of Nanhaia speciosa and Nanhaia fordii: insights into lectin dynamics, nodulation, and triterpenoid saponin biosynthesis.BMC biology · 2025Article
- Shaping the future of bananas: advancing genetic trait regulation and breeding in the postgenomics era.Horticulture research · 2025Article
- Chromosome-level genome assemblies ofHorticulture research · 2024Article
- High-quality genome assemblies for two Australimusa bananas (Musa spp.) and insights into regulatory mechanisms of superior fiber properties.Plant communications · 2024Article
- Telomere-to-telomere haplotype-resolved reference genome reveals subgenome divergence and disease resistance in triploid Cavendish banana.Horticulture research · 2023Article
- Genome-Wide SNP and Indel Discovery in Abaca (Current issues in molecular biology · 2023Article
- Identification of annotation artifacts concerning the chalcone synthase (CHS).BMC research notes · 2023Article
- The banana genome hub: a community database for genomics in the Musaceae.Horticulture research · 2022Article
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11 authors.
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Abstract
backgroundKarat (Musa troglodytarum L.) is an autotriploid Fe'i banana of the Australimusa section. Karat was domesticated independently in the Pacific region, and karat fruit are characterized by a pink sap, a deep yellow-orange flesh colour, and an abundance of β-carotene. Karat fruit showed non-climacteric behaviour, with an approximately 215-day bunch filling time. These features make karat a valuable genetic resource for studying the mechanisms underlying fruit development and ripening and carotenoid biosynthesis.
resultsHere, we report the genome of M. troglodytarum, which has a total length of 603 Mb and contains 37,577 predicted protein-coding genes. After divergence from the most recent common ancestors, M. troglodytarum (T genome) has experienced fusion of ancestral chromosomes 8 and 9 and multiple translocations and inversions, unlike the high synteny with few rearrangements found among M. schizocarpa (S genome), M. acuminata (A genome) and M. balbisiana (B genome). Genome microsynteny analysis showed that the triplication of MtSSUIIs due to chromosome rearrangement may lead to the accumulation of carotenoids and ABA in the fruit. The expression of duplicated MtCCD4s is repressed during ripening, leading to the accumulation of α-carotene, β-carotene and phytoene. Due to a long terminal repeat (LTR)-like fragment insertion upstream of MtERF11, karat cannot produce large amounts of ethylene but can produce ABA during ripening. These lead to non-climacteric behaviour and prolonged shelf-life, which contributes to an enrichment of carotenoids and riboflavin.
conclusionsThe high-quality genome of M. troglodytarum revealed the genomic basis of non-climacteric behaviour and enrichment of carotenoids, riboflavin, flavonoids and free galactose and provides valuable resources for further research on banana domestication and breeding and the improvement of nutritional and bioactive qualities.
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