Complete chloroplast genome sequence of Rhododendron mariesii and comparative genomics of related species in the family Ericaeae
Rhododendron mariesii Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this research, the complete chloroplast (cp) genome of R. mariesii was sequenced and assembled, which proved to be a typical quadripartite structure w...
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Published in: | Comparative cytogenetics Vol. 17; no. 1; pp. 163 - 180 |
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Abstract | Rhododendron mariesii
Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this research, the complete chloroplast (cp) genome of
R. mariesii
was sequenced and assembled, which proved to be a typical quadripartite structure with the length of 203,480 bp. In particular, the lengths of the large single copy region (LSC), small single copy region (SSC), and inverted repeat regions (IR) were 113,715 bp, 7,953 bp, and 40,918 bp, respectively. Among the 151 unique genes, 98 were protein-coding genes, 8 were tRNA genes, and 45 were rRNA genes. The structural characteristics of the
R. mariesii
cp genome was similar to other angiosperms. Leucine was the most representative amino acid, while cysteine was the lowest representative. Totally, 30 codons showed obvious codon usage bias, and most were A/U-ending codons. Six highly variable regions were observed, such as
trnK-pafI
and
atpE-rpoB
, which could serve as potential markers for future barcoding and phylogenetic research of
R. mariesii
species. Coding regions were more conserved than non-coding regions. Expansion and contraction in the IR region might be the main length variation in
R. mariesii
and related Ericaeae species. Maximum-likelihood (ML) phylogenetic analysis revealed that
R. mariesii
was relatively closed to the
R. simsii
Planchon, 1853 and
R. pulchrum
Sweet,1831. This research will supply rich genetic resource for
R. mariesii
and related species of the Ericaeae. |
---|---|
AbstractList | Rhododendron mariesii Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this research, the complete chloroplast (cp) genome of R. mariesii was sequenced and assembled, which proved to be a typical quadripartite structure with the length of 203,480 bp. In particular, the lengths of the large single copy region (LSC), small single copy region (SSC), and inverted repeat regions (IR) were 113,715 bp, 7,953 bp, and 40,918 bp, respectively. Among the 151 unique genes, 98 were protein-coding genes, 8 were tRNA genes, and 45 were rRNA genes. The structural characteristics of the R. mariesii cp genome was similar to other angiosperms. Leucine was the most representative amino acid, while cysteine was the lowest representative. Totally, 30 codons showed obvious codon usage bias, and most were A/U-ending codons. Six highly variable regions were observed, such as trnK-pafI and atpE-rpoB, which could serve as potential markers for future barcoding and phylogenetic research of R. mariesii species. Coding regions were more conserved than non-coding regions. Expansion and contraction in the IR region might be the main length variation in R. mariesii and related Ericaeae species. Maximum-likelihood (ML) phylogenetic analysis revealed that R. mariesii was relatively closed to the R. simsii Planchon, 1853 and R. pulchrum Sweet,1831. This research will supply rich genetic resource for R. mariesii and related species of the Ericaeae. Rhododendron mariesii Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this research, the complete chloroplast (cp) genome of R. mariesii was sequenced and assembled, which proved to be a typical quadripartite structure with the length of 203,480 bp. In particular, the lengths of the large single copy region (LSC), small single copy region (SSC), and inverted repeat regions (IR) were 113,715 bp, 7,953 bp, and 40,918 bp, respectively. Among the 151 unique genes, 98 were protein-coding genes, 8 were tRNA genes, and 45 were rRNA genes. The structural characteristics of the R. mariesiicp genome was similar to other angiosperms. Leucine was the most representative amino acid, while cysteine was the lowest representative. Totally, 30 codons showed obvious codon usage bias, and most were A/U-ending codons. Six highly variable regions were observed, such as trnK-pafI and atpE-rpoB, which could serve as potential markers for future barcoding and phylogenetic research of R. mariesii species. Coding regions were more conserved than non-coding regions. Expansion and contraction in the IR region might be the main length variation in R. mariesii and related Ericaeae species. Maximum-likelihood (ML) phylogenetic analysis revealed that R. mariesii was relatively closed to the R. simsii Planchon, 1853 and R. pulchrum Sweet,1831. This research will supply rich genetic resource for R. mariesii and related species of the Ericaeae. Keywords: chloroplast genome, comparative genomics, conservation genetics, phylogeny, Rhododendron mariesii Rhododendron mariesii Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this research, the complete chloroplast (cp) genome of R. mariesii was sequenced and assembled, which proved to be a typical quadripartite structure with the length of 203,480 bp. In particular, the lengths of the large single copy region (LSC), small single copy region (SSC), and inverted repeat regions (IR) were 113,715 bp, 7,953 bp, and 40,918 bp, respectively. Among the 151 unique genes, 98 were protein-coding genes, 8 were tRNA genes, and 45 were rRNA genes. The structural characteristics of the R. mariesii cp genome was similar to other angiosperms. Leucine was the most representative amino acid, while cysteine was the lowest representative. Totally, 30 codons showed obvious codon usage bias, and most were A/U-ending codons. Six highly variable regions were observed, such as trnK-pafI and atpE-rpoB , which could serve as potential markers for future barcoding and phylogenetic research of R. mariesii species. Coding regions were more conserved than non-coding regions. Expansion and contraction in the IR region might be the main length variation in R. mariesii and related Ericaeae species. Maximum-likelihood (ML) phylogenetic analysis revealed that R. mariesii was relatively closed to the R. simsii Planchon, 1853 and R. pulchrum Sweet,1831. This research will supply rich genetic resource for R. mariesii and related species of the Ericaeae. Rhododendron mariesii Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this research, the complete chloroplast (cp) genome of R. mariesii was sequenced and assembled, which proved to be a typical quadripartite structure with the length of 203,480 bp. In particular, the lengths of the large single copy region (LSC), small single copy region (SSC), and inverted repeat regions (IR) were 113,715 bp, 7,953 bp, and 40,918 bp, respectively. Among the 151 unique genes, 98 were protein-coding genes, 8 were tRNA genes, and 45 were rRNA genes. The structural characteristics of the R. mariesiicp genome was similar to other angiosperms. Leucine was the most representative amino acid, while cysteine was the lowest representative. Totally, 30 codons showed obvious codon usage bias, and most were A/U-ending codons. Six highly variable regions were observed, such as trnK-pafI and atpE-rpoB, which could serve as potential markers for future barcoding and phylogenetic research of R. mariesii species. Coding regions were more conserved than non-coding regions. Expansion and contraction in the IR region might be the main length variation in R. mariesii and related Ericaeae species. Maximum-likelihood (ML) phylogenetic analysis revealed that R. mariesii was relatively closed to the R. simsii Planchon, 1853 and R. pulchrum Sweet,1831. This research will supply rich genetic resource for R. mariesii and related species of the Ericaeae. |
Audience | Academic |
Author | Dong, Hongjin Zhang, Chunyu Huang, Zhiwei Yu, Jiaojun Wang, Shuzhen Li, Zhiliang Wan, Xuchun Zhang, Jialiang |
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Cites_doi | 10.1038/srep13957 10.1186/s12864-015-1498-0 10.1111/njb.02251 10.1186/s12864-021-08225-6 10.1101/gr.2289704 10.1371/journal.pone.0057533 10.3389/fpls.2016.00843 10.1270/jsbbs.18092 10.1007/s11295-020-01436-0 10.1007/s12298-021-00989-1 10.1093/bioinformatics/btu033 10.1186/s12870-020-02621-y 10.1186/s12864-020-07219-0 10.1093/gbe/evv069 10.1371/journal.pone.0233167 10.1186/s13059-016-1004-2 10.1016/j.ygeno.2020.12.016 10.1590/1678-4685-gmb-2017-0265 10.1186/s13059-020-02154-5 10.1038/srep08348 10.1371/journal.pcbi.1009244 10.1186/s12864-019-6253-5 10.1002/ajb2.1178 10.1080/23802359.2020.1714511 10.1186/s12870-016-0967-1 10.3390/ijms20051045 10.1186/1471-2164-13-715 10.1007/s00425-021-03812-z 10.3390/ijms19103142 10.1534/genetics.112.140178 10.1080/23802359.2021.1959458 10.1111/1755-0998.12585 10.3390/f11020158 10.1139/gen-2019-0153 10.1093/nar/gkz238 10.1007/s00239-021-10038-w 10.1093/bioinformatics/bty220 10.1080/23802359.2017.1390407 10.1093/gbe/evt063 10.1155/2022/3457806 |
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Snippet | Rhododendron mariesii
Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this... Rhododendron mariesii Hemsley et Wilson, 1907, a typical member of the family Ericaeae, possesses valuable medicinal and horticultural properties. In this... |
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SubjectTerms | Amino acids Angiosperms Chloroplasts Codons Genes Genetic aspects Genomes Genomics Inverted repeat Leucine Nucleotide sequence Phylogenetics Phylogeny Rhododendron RpoB protein rRNA tRNA |
Title | Complete chloroplast genome sequence of Rhododendron mariesii and comparative genomics of related species in the family Ericaeae |
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