Indigenous vegetables in Yunnan Province, China

Zhong, Liu; Zhang, L. Q.; Lan, Mei-Ying

doi:10.17660/actahortic.2015.1102.10

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“…This species grows on swampy meadows, steep grassy slopes, and open thickets of the high mountains (Hengduan Mountains) in southwest China at elevations of 3000–4800 m ( Cheo et al, 2001 ). It has been collected as a wild vegetable and medicine for years by the local inhabitants in the high-altitude regions ( Zhong et al, 2015 ). The dried plants of M. delavayi are used to treat dysentery, lung cough, and disordered indigestion by Bai and Tibetan people ( Lei et al, 2009 ; Shen et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

The Genome Sequence of Alpine Megacarpaea delavayi Identifies Species-Specific Whole-Genome Duplication

Yang

et al. 2020

Front. Genet.

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Megacarpaea delavayi (Brassicaceae), a plant found the high mountains of southwest China at high altitudes (3000–4800 m), is used as a vegetable or medicine. Here, we report a draft genome for this species. The assembly genome of M. delavayi is 883 Mb, and 61.59% of the genome is composed of repeat sequences. Annotation of the genome identified a total of 41,114 protein-coding genes. We found that M. delavayi experienced an independent whole-genome duplication (WGD), paralleling those independent WGDs in Iberis , Biscutella , and Anastatica in the early Miocene. Phylogenetic analyses based on the single-copy genes confirmed the position of the genus Megacarpaea within the expanded lineage II of the family and resolved its basal divergence to a subclade consisting of Anastatica, Iberis , and Biscutella. Species-specific and fast-evolving genes in M. delavayi are mainly involved in “DNA repair” and “response to UV-B radiation.” These genetic changes may together help this species survive in high-altitude environments. The reference genome reported here provides a valuable resource for studying adaptation of this and other alpine plants to the high-altitude habitats.

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Section: Introductionmentioning

confidence: 99%

The Genome Sequence of Alpine Megacarpaea delavayi Identifies Species-Specific Whole-Genome Duplication

Yang

et al. 2020

Front. Genet.

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Indigenous vegetables in Yunnan Province, China

Cited by 1 publication

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The Genome Sequence of Alpine Megacarpaea delavayi Identifies Species-Specific Whole-Genome Duplication

The Genome Sequence of Alpine Megacarpaea delavayi Identifies Species-Specific Whole-Genome Duplication

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