Orchid Conservation Translocation Efforts in China

Liu, Hong; Gao, Jiang-Yun

doi:10.1007/978-981-15-5301-1_19

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…In addition, P. pedunculata was classified as a national near-threatened species by the China Biodiversity Red List – Higher Plants ( Ministry of Ecology and Environment of the People's Republic of China and Science, 2020 ) and been assessed by the IUCN Red List of Threatened Species ( Rhodes and Maxted, 2016 ). Extensive investigations have focused on chloroplast (cp) genome analysis ( Duan et al., 2020 ; Du et al., 2021 ), chemical compounds ( Ma, 2013 ; Lu et al., 2018 ; Yao et al., 2018 ; Li et al., 2020 ), genetic diversity ( Zuo, 2016 ; Bao et al., 2021 ), resistance to various abiotic stress ( Ma, 2006 ; Jiang, 2008 ; Luo, 2009 ; Guo, 2014 ), cultivation technology ( Li, 2017 ; Wang et al., 2020b ; Wang et al., 2021b ), protection and utilization ( Chu et al., 2015 ; Liu, 2017 ; Xiong et al., 2018 ; Bao et al., 2021 ) of P. pedunculata . Previous studies have indicated that P. pedunculata possesses many resistance genes.…”

Section: Introductionmentioning

confidence: 99%

Complete mitochondrial genome of the endangered Prunus pedunculata (Prunoideae, Rosaceae) in China: characterization and phylogenetic analysis

Liu,

Wu,

Tian

et al. 2023

Front. Plant Sci.

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IntroductionPrunus pedunculata (Prunoideae: Rosaceae), a relic shrub with strong resistance and multiple application values, is endangered in China. Extensive research had been devoted to gene expression, molecular markers, plastid genome analysis, and genetic background investigations of P. pedunculata. However, the mitochondrial genome of this species has not been systematically described, owing to the complexity of the plant mitogenome.MethodsIn the present research, the complete mitochondrial genome of P. pedunculata was assembled, annotated, and characterized. The genomic features, gene content and repetitive sequences were analyzed. The genomic variation and phylogenetic analysis have been extensively enumerated.Results and discussionThe P. pedunculata mitogenome is a circular molecule with a total length of 405,855 bp and a GC content of 45.63%, which are the smallest size and highest GC content among the known Prunus mitochondrial genomes. The mitogenome of P. pedunculata encodes 62 genes, including 34 unique protein-coding genes (PCGs, excluding three possible pseudogenes), three ribosomal RNA genes, and 19 transfer RNA genes. The mitogenome is rich in repetitive sequences, counting 112 simple sequence repeats, 15 tandem repeats, and 50 interspersed repetitive sequences, with a total repeat length of 11,793 bp, accounting for 2.91% of the complete genome. Leucine (Leu) was a predominant amino acid in PCGs, with a frequency of 10.67%, whereas cysteine (Cys) and tryptophan (Trp) were the least adopted. The most frequently used codon was UUU (Phe), with a relative synonymous codon usage (RSCU) value of 1.12. Selective pressure was calculated based on 20 shared PCGs in the mitogenomes of the 32 species, most of which were subjected to purifying selection (Ka/Ks < 1), whereas ccmC and ccmFn underwent positive selection. A total of 262 potential RNA editing sites in 26 PCGs were identified. Furthermore, 56 chloroplast-derived fragments were ascertained in the mitogenome, ranging from 30 to 858 bp, and were mainly located across IGS (intergenic spacer) regions or rRNA genes. These findings verify the occurrence of intracellular gene transfer events from the chloroplast to the mitochondria. Furthermore, the phylogenetic relationship of P. pedunculata was supported by the mitogenome data of 30 other taxa of the Rosaceae family. Understanding the mitochondrial genome characteristics of P. pedunculata is of great importance to promote comprehension of its genetic background and this study provides a basis for the genetic breeding of Prunus.

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Section: Introductionmentioning

confidence: 99%

Complete mitochondrial genome of the endangered Prunus pedunculata (Prunoideae, Rosaceae) in China: characterization and phylogenetic analysis

Liu,

Wu,

Tian

et al. 2023

Front. Plant Sci.

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Research trends and perspectives on African orchids: a bibliometric overview

ABDOULAYE

Assèdé

Biaou

et al. 2021

Ann. UP, Série Sci. Nat. Agron.

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Worldwide scientific publications on the remarkably diverse Orchidaceae family are comprehensive, but Africa's craze for the taxon was only felt a few decades ago. This largest and threatened family of flowering plants is widely distributed in tropical areas and recognized by several authors for its environmental, ornamental, and medicinal importance. This review aims to identify research patterns on African orchids using co-citation analysis and bibliometric information visualization. 386 publications concerning African orchids listed in the Scopus database from 1968 to May 2020 were recorded and reviewed. The description of new orchid taxa, the adaptation of orchids to various pollinators and phylogeny emerged as the most discussed aspects. In total, 889 authors have invested in research on orchids in Africa. Johnson Steven D. was the most impactful author with h-index 37. Interestingly, several institutions were involved in these studies with a large dominance of the University of KwaZulu-Natal, a South African University. Future research efforts should target the identification of new orchid species and emphasize on orchid distribution, ecology, and species’ threats. They should also focus on developing efficient management and domestication strategies for orchid species to reduce threats to this family. The restoration and conservation planning of degraded orchid habitats are additional avenues to be explored by future research.

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Orchid Conservation Translocation Efforts in China

Cited by 2 publications

References 27 publications

Complete mitochondrial genome of the endangered Prunus pedunculata (Prunoideae, Rosaceae) in China: characterization and phylogenetic analysis

Complete mitochondrial genome of the endangered Prunus pedunculata (Prunoideae, Rosaceae) in China: characterization and phylogenetic analysis

Research trends and perspectives on African orchids: a bibliometric overview

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