ArticleDNA research : an international journal for rapid publication of reports on genes and genomes2024
Insights from the first chromosome-level genome assembly of the alpine gentian Gentiana straminea Maxim.
Article in DNA research : an international journal for rapid publication of reports on genes and genomes, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Genomic insights into alpine plant adaptation.Plant diversity · 2026Review
- The Gentiana rigescens genome and transcriptome for the investigation of flower repetitive blooming.BMC biology · 2025Article
- A Near Telomere-To-Telomere Genome Assembly of Coffea arabica (Mundo Novo) Provides Insights Into Its Secondary Metabolism.Molecular ecology resources · 2025Article
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3 authors.
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Abstract
Gentiana straminea Maxim. is a perennial herb and mainly distributed in the Qinghai-Tibetan Plateau. To adapt to the extreme environment, it has developed particular morphological, physiological, and genetic structures. Also, rich in iridoids, it is one of the original plants of traditional Chinese herb 'Qinjiao'. Herein, we present its first chromosome-level genome sequence assembly and compare it with the genomes of other Gentiana species to facilitate the analysis of genomic characteristics. The assembled genome size of G. straminea was 1.25 Gb, with a contig N50 of 7.5 Mb. A total of 96.08% of the genome sequences was anchored on 13 pseudochromosomes, with a scaffold N50 of 92.70 Mb. A total of 54,310 protein-coding genes were predicted, 80.25% of which were functionally annotated. Comparative genomic analyses indicated that G. straminea experienced two whole-genome duplication events after the γ whole-genome triplication with other eudicots, and it diverged from other Gentiana species at ~3.2 Mya. A total of 142 enzyme-coding genes related to iridoid biosynthesis were identified in its genome. Additionally, we identified differences in the number and expression patterns of iridoid biosynthetic pathway genes in G. straminea compared with two other Gentiana species by integrating whole-genome sequence and transcriptomic analyses.
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