Chloroplast genome features and intraspecific variation of Rosa praelucens

Rosa praelucens is a critically endangered alpine wild flower endemic to Shangri-La City of Yunnan Province. Rich in phenotypic diversity and with a high ploidy level of decaploid, R. praelucens is a very important rose germplasm resource. In order to clarify the genetic background of its phenotypic...

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Published inGuangxi zhiwu Vol. 45; no. 1; pp. 15 - 30
Main Author WANG Qigang1, CAO Shirui1,2, WANG Huichun1, MA Changle2, YAN Huijun1, QIU Xianqin1, JING Weikun1, JIAN Hongying1
Format Journal Article
LanguageChinese
Published China Science Publishing & Media Ltd. (CSPM) 01.01.2025
Subjects
chloroplast genome
comparative genome
nucleotide polymorphism(pi)
rosa praelucens
simple sequence repeats(ssrs)
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Summary:Rosa praelucens is a critically endangered alpine wild flower endemic to Shangri-La City of Yunnan Province. Rich in phenotypic diversity and with a high ploidy level of decaploid, R. praelucens is a very important rose germplasm resource. In order to clarify the genetic background of its phenotypic variation, the chloroplast genomes of 40 R. praelucens individual plants representing different phenotypes within the species were sequenced by using the Illumina HiSeq 2000 platform, and then assembled, annotated, compared and analyzed. The results were as follows:(1)Chloroplast genomes of R. praelucens were 157 173 - 157 261 bp in length, with a size difference of 88 bp among different individual plants. The genomes encoded 132 function genes, mainly related with photosynthesis and self-replication. A total of 27 155 codons, preferring using codon ending of A or U, were found in all the coding sequences.(2)A total of 36 repeats and 73 simple sequence repeats(SSRs)were detected in the chloroplast genome of R. pra
ISSN:1000-3142
DOI:10.11931/guihaia.gxzw202312023