Dataset Information

The complete chloroplast genome of Pleione hookeriana (Orchidaceae) from Yunnan Province, China.

ABSTRACT: Pleione hookeriana (Lindl.) B. S. Williams is a species of Orchidaceae with high ornamental value. It is a protected plant in China. To document the genetic history of this rare species, the chloroplast genome sequence of P. hookeriana from the Yunnan Province, China, were analyzed. The complete chloroplast genome is 158,930 bp in length and contains a large single-copy (LSC) region of 86,880 bp, a small single-copy region of 18,664 bp (SSC), and a pair of inverted repeats (IR) of 26,693bp. There are 137 genes, including 89 protein-coding, 40 transfer RNA (tRNA) and 8 ribosomal RNA (rRNA) genes. The total GC content of the chloroplast genome sequence is 37.2%. The maximum-likelihood phylogenetic analysis indicated that P. hookeriana was sister to P. chunii (MK792342.1). The result may be because the species are roughly the same geographical location and advanced and developed from the same ancestor. This study provides important information for the identification and conservation of species, and genetic engineering of P. hookeriana.

SUBMITTER: Chai W

PROVIDER: S-EPMC8865124 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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The complete chloroplast genome of Pleione hookeriana (Orchidaceae) from Yunnan Province, China.

Chai Weiguo W Chen Xiang X Li Huimin H Xia Pengguo P

Mitochondrial DNA. Part B, Resources 20220217 2

Pleione hookeriana (Lindl.) B. S. Williams is a species of Orchidaceae with high ornamental value. It is a protected plant in China. To document the genetic history of this rare species, the chloroplast genome sequence of P. hookeriana from the Yunnan Province, China, were analyzed. The complete chloroplast genome is 158,930 bp in length and contains a large single-copy (LSC) region of 86,880 bp, a small single-copy region of 18,664 bp (SSC), and a pair of inverted repeats (IR) of ...[more]

PMID: 35224197

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Project description:Yunnan Province, China is thought to be the original source of biovar Orientalis of Yersinia pestis, the causative agent of the third plague pandemic that has spread globally since the end of the 19th century. Although encompassing a large area of natural plague foci, Y. pestis strains have rarely been found in live rodents during surveillance in Yunnan, and most isolates are from rodent corpses and their fleas. In 2017, 10 Y. pestis strains were isolated from seven live rodents and three fleas in Heqing County (HQ) of Yunnan. These strains were supposed to have low virulence to local rodents Eothenomys miletus and Apodemus chevrieri because the rodents were healthy and no dead animals were found in surrounding areas, as had occurred in previous epizootic disease. We performed microscopic and biochemical examinations of the isolates,and compared their whole-genome sequences and transcriptome with those of 10 high virulence Y. pestis strains that were isolated from the adjacent city (Lijiang). We analyzed the phenotypic, genomic, and transcriptomic characteristics of live rodent isolates. The isolates formed a previously undefined monophyletic branch of Y. pestis that was named 1.IN5. Six SNPs, two indels, and one copy number variation were detected between live rodent isolates and the high virulence neighbors. No obvious functional consequence of these variations was found according to the known annotation information. Among the genes that were differentially expressed between the live rodent isolates and their high virulence neighbors, we detected five iron transfer-related genes that were significantly up-regulated in live rodent isolates compared with high virulence isolates (|log2 (FC) | >1, p.adjust <0.05), indicating these genes may be related to the low-virulence phenotype. The novel genotype of Y. pestis reported here provides further insights into the evolution and spread of plague as well as clues that may help to decipher the virulence mechanism of this notorious pathogen.

Dataset Information

The complete chloroplast genome of Pleione hookeriana (Orchidaceae) from Yunnan Province, China.

Publications

The complete chloroplast genome of <i>Pleione hookeriana</i> (Orchidaceae) from Yunnan Province, China.

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