In:
Frontiers in Genetics, Frontiers Media SA, Vol. 15 ( 2024-7-23)
Abstract:
The genus Ainsliaea DC. is one of the major groups within the tribe Pertyeae (Asteraceae). It comprises several important Chinese medicinal species. However, the phylogenetic position has undergone a long process of exploration. The complete chloroplast (cp) genome sequences data has not been employed in species identification and phylogeny of Ainsliaea . In this study, the complete cp genomes of two Ainsliaea species ( A. gracilis and A. henryi ) were reported, followed by structural, comparative, and phylogenetic analyses within the tribe Peryteae. Both cp genomes displayed a typical quadripartite circular structure, with the LSC and SSC regions separated by the IR regions. The genomes were 152,959 ( A. gracilis ) and 152,805 ( A. henryi ) base pairs (bp) long, with a GC content of 37.6%. They were highly conserved, containing 134 genes, including 87 protein-coding genes, 37 tRNA genes, 8 rRNA genes, and 2 pseudogenes ( rps19 and ycf1 ). Moreover, thirteen highly polymorphic regions (e.g., trnK-UUU , trnG-UCC , trnT-GGU , accD-psaI , and rpl22-rps19 ) were identified, indicating their potential as DNA barcodes. The phylogenetic analysis confirmed the placement of Ainsliaea in the tribe Pertyeae, revealing close relationships with the genera Myripnois and Pertya . In comparison with Ainsliaea , Myripnois was more closely related to Pertya . This study lays a theoretical foundation for future research on species identification, population genetics, resource conservation, and sustainable utilization within Ainsliaea and Pertyeae.
Type of Medium:
Online Resource
ISSN:
1664-8021
DOI:
10.3389/fgene.2024.1408114
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2024
detail.hit.zdb_id:
2606823-0
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