The complete chloroplast genome sequence of <i>Camellia mingii</i> (Theaceae), a critically endangered yellow camellia species endemic to China

Zhang, Qiong; Luo, Jian; Ma, Jin-Lin; Wei, Xiao-Juan; Peng, Hua; Yang, Shixiong; Yu, Xiang‐Qin

doi:10.1080/23802359.2019.1596765

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…), also known as Yunnan camellia is among the decorative trees belonging to the Camellia genus, which are members of the Theaceae family (Xia, 2003; Xin et al, 2015 ). There are 97 different species of Camellia, 76 of which are endemic to China ( Yu, 1985 ; Xia, 2003 ; Zhang et al, 2019 ). China is considered the origin and distribution hub of Camellia .…”

Section: Introductionmentioning

confidence: 99%

Integrated transcriptome and metabolome profiling of Camellia reticulata reveal mechanisms of flower color differentiation

et al. 2022

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Camellia reticulata (Lindl.) is an important ornamental plant in China. Long-term natural or artificial selections have resulted in diverse phenotypes, especially for flower colors. Modulating flower colors can enhance the visual appeal and economic value in ornamental plants. In this study, we investigated the molecular mechanisms underlying flower color differentiation in C. reticulata. We performed a combined transcriptome and metabolome analysis of the petals of a popular variety C. reticulata (HHYC) (red), and its two cultivars “Xuejiao” (XJ) (pink) and “Tongzimian” (TZM) (white). Targeted metabolome profiling identified 310 flavonoid compounds of which 18 anthocyanins were differentially accumulated among the three samples with an accumulation pattern of HHYC > XJ > TZM. Likewise, transcriptome analysis showed that carotenoid and anthocyanin biosynthetic structural genes were mostly expressed in order of HHYC > XJ > TZM. Two genes (gene-LOC114287745765 and gene-LOC114289234) encoding for anthocyanidin 3-O-glucosyltransferase are predicted to be responsible for red coloration in HHYC and XJ. We also detected 42 MYB and 29 bHLH transcription factors as key regulators of anthocyanin-structural genes. Overall, this work showed that flavonoids, particularly anthocyanins contents are the major determinants of flower color differentiation among the 3 C. reticulata samples. In addition, the main regulatory and structural genes modulating anthocyanin contents in C. reticulata have been unveiled. Our results will help in the development of Camellia varieties with specific flower color and quality.

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Section: Introductionmentioning

confidence: 99%

Integrated transcriptome and metabolome profiling of Camellia reticulata reveal mechanisms of flower color differentiation

et al. 2022

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“…It would be reasonable to conclude that the sample of C. pubicosta, bearing the GenBank accession number KJ806277 (Huang et al, 2014), was misidentified. Unfortunately, these plastid genome data (GenBank: KJ806277 = NC024662) were re-used many times under the incorrect name (e.g., Wang et al, 2017;Zhang et al, 2017Zhang et al, , 2019Yan et al, 2021).…”

Section: Phylogenetic Relationships and Taxonomic Significancementioning

confidence: 99%

Phylogenetics of global Camellia (Theaceae) based on three nuclear regions and its implications for systematics and evolutionary history

Zhao

Hodkinson

Parnell

2022

J of Sytematics Evolution

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Camellia contains tea, oil camellia, and camellias which benefit people globally. Its infrageneric classification is, however, controversial and unstable, and former phylogenetic analyses failed to yield robust and consistent trees. Here, we aimed to reconstruct a robust phylogenetic tree, date all clades and discuss the evolutionary history of Camellia. Emphasizing the taxonomically comprehensive sampling rather than more DNA data, orthologous nuclear RPB2 introns 11-15 and 23, and waxy were sequenced for 99 taxa of Camellia to reconstruct its phylogenetic history. Ten clades are identified in Camellia: Camellia II, Camelliopsis, Corallina, Furfuracea, Heterogenea, Paracamellia, Piquetia, Stereocarpus, Thea and Yellow camellias II. Camellia grijsii and C. shensiensis are not closely related with other oil camellias that form the clade Paracamellia. Sections Camelliopsis and Theopsis together form the clade Camelliopsis, while clade Furfuracea consists of sect. Furfuracea and C. hongkongensis. Camellia connata is separated from C. lanceolata but nested in the clade Heterogenea, and C. longissima is nested in the clade Thea, suggesting a new germplasm for tea breeding. Molecular dating using four fossil calibration points suggests that the crown age of Camellia is 39.5 Ma with clade Corallina probably the earliest infrageneric clade to diversify and the most widespread clade, Paracamellia, the latest. Our findings provide new insights into the phylogenetic relationships, systematics and evolutionary history of Camellia.

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“…The reconstruction of phylogenetic relationships among these representative species of Camellia suggests that cp genomic resources are able to provide useful data to help to understand their evolutionary relationships and classify the ‘difficult taxa’. Increasing interest in the Camellia plants have made up to thirty-eight of cp genomes be sequenced up to date 20–37 . Recently, we decoded the first nuclear genome of C .…”

Section: Background and Summarymentioning

confidence: 99%

“…sinensis var. assamica cp genome among thirty-eight cp genomes that were sequenced in this genus 4,20–37 , up to data, none of mt genome has been determined in the genus Camellia .…”

Section: Background and Summarymentioning

confidence: 99%

Deciphering tea tree chloroplast and mitochondrial genomes of Camellia sinensis var. assamica

Zhang

Gao

et al. 2019

Sci Data

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Tea is the most popular non-alcoholic caffeine-containing and the oldest beverage in the world. In this study, we de novo assembled the chloroplast (cp) and mitochondrial (mt) genomes of C. sinensis var. assamica cv. Yunkang10 into a circular contig of 157,100 bp and two complete circular scaffolds (701719 bp and 177329 bp), respectively. We correspondingly annotated a total of 141 cp genes and 71 mt genes. Comparative analysis suggests repeat-rich nature of the mt genome compared to the cp genome, for example, with the characterization of 37,878 bp and 149 bp of long repeat sequences and 665 and 214 SSRs, respectively. We also detected 478 RNA-editing sites in 42 protein-coding mt genes, which are ~4.4-fold more than 54 RNA-editing sites detected in 21 protein-coding cp genes. The high-quality cp and mt genomes of C. sinensis var. assamica presented in this study will become an important resource for a range of genetic, functional, evolutionary and comparative genomic studies in tea tree and other Camellia species of the Theaceae family.

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The complete chloroplast genome sequence of Camellia mingii (Theaceae), a critically endangered yellow camellia species endemic to China

Abstract: View related articles View Crossmark data Citing articles: 1 View citing articles MITOGENOME ANNOUNCEMENT The complete chloroplast genome sequence of Camellia mingii (Theaceae), a critically endangered yellow camellia species endemic to China

Cited by 6 publications

References 12 publications

Integrated transcriptome and metabolome profiling of Camellia reticulata reveal mechanisms of flower color differentiation

Integrated transcriptome and metabolome profiling of Camellia reticulata reveal mechanisms of flower color differentiation

Phylogenetics of global Camellia (Theaceae) based on three nuclear regions and its implications for systematics and evolutionary history

Deciphering tea tree chloroplast and mitochondrial genomes of Camellia sinensis var. assamica

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