Comprehensive characterization and phylogenetic analysis of the complete plastomes of two ant–orchids, Caularthron bicornutum and Myrmecophila thomsoniana DOI Creative Commons
Jinwei Li, Ruyi Li, Yuming Chen

et al.

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Nov. 29, 2024

Myrmecophytes, characterized by specialized structures like hollow stems that facilitate mutualistic relationships with ants, serve as an important system for studying ant-plant interactions and the adaptation mechanisms. Caularthron Myrmecophila are exemplary myrmecophytes within Orchidaceae. Previous studies suggested a genetic relationship between these two genera, placing them Laeliinae (Epidendreae), yet precise phylogenetic positioning remained uncertain. The absence of available plastome resources has hindered investigations into evolution phylogeny. In this study, we sequenced assembled complete plastomes bicornutum thomsoniana to elucidate their characteristics relationships. determined sizes were 150,557 bp C. 156,905 M. thomsoniana, GC contents 37.3% 37.1%, respectively. Notably, exhibited distinctive IR expansion SSC contraction, region measuring only 4532 containing five genes (ccsA, ndhD, rpl32, psaC, trnL-UAG), unique feature observed first time in Epidendreae. Comparative analyses species from related genus Epidendrum revealed conserved genome size, content, gene order. A total 32 33 long sequence repeats, 50 40 tandem 99 109 SSRs identified RSCU analysis demonstrated consistent pattern both plastomes, 29 out 30 codons values greater than 1 featuring A/U at third codon position. Leucine was most prevalent amino acid, while Cysteine least common. Four potential DNA barcoding regions Pi exceeding 0.07, namely ycf1, ccsA–psaC, petN–psbM, accD–psaI, subsequent reconstructions Laeliinae. Phylogenetic underscored close among Caularthron, Epidendrum, Myrmecophila. This study represents comprehensive thomsoniana. Through our characterization analyses, unveiled expansion/SSC contraction further elucidated positions. Our research contributes significant data insights dynamic ant–orchid phylogeny

Language: Английский

Characterizing the microbiome recruited by the endangered plant Firmiana danxiaensis in phosphorus-deficient acidic soil DOI Creative Commons
Jiayu Li,

Guangda Tang,

Hongwei Liu

et al.

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 15, 2025

Phosphorus (P)-deficient soils serve as crucial habitats for endangered plant species. Microbiomes play pivotal roles in soil element cycling and determining a plant's adaptability to the environment. However, relationship between plant, microbiome, stoichiometric traits, how it affects adaption P-deficient remain largely unexplored. In this study, we investigated microbiome (bacteria fungi) rhizosphere of Firmiana danxiaensis, an species growing exclusively acidic on Mt. Danxia, South China; non-endangered coexisting tree Pinus massoniana was used reference. Our results showed that traits F. danxiaensis differed significantly from P. massoniana, including higher pH, lower C:N, N:P. The harbors microbial diversity different communities massoniana. Using machine learning approach, characterized 76 bacterial 20 fungal phylotypes dominated rhizosphere, most which had strong impacts ecological network structure (they accounted only 0.33% node numbers but linked 21.2% nodes network); specifically, Udaeobacter spp., highly abundant (constituting 4.07% total community) member Verrucomicrobiota accumulated not demonstrated pronounced prefers toward habitat (high low C:N high N:P) potential antagonistic indication. contrast, harbored more Subgroup2 Acidobacteria Gammaproteobacterial N-fixer. Taken together, study provided novel evidence plants recruited unique by spp. favoring N habitat. It contributes our understanding recruitment soils, also underscores importance conservation population restoration plants.

Language: Английский

Citations

1
Comparative analysis of the complete mitochondrial genomes of Firmiana danxiaensis and F. kwangsiensis (Malvaceae), two endangered Firmiana species in China DOI
Qifeng Lu, Wenhua Luo

Planta, Journal Year: 2025, Volume and Issue: 261(5)

Published: April 9, 2025

Language: Английский

Citations

0
Complete Chloroplast Genome of Alternanthera sessilis and Comparative Analysis with Its Congeneric Invasive Weed Alternanthera philoxeroides DOI Open Access
Yuanxin Wang, Xueying Zhao, Qianhui Chen

et al.

Genes, Journal Year: 2024, Volume and Issue: 15(5), P. 544 - 544

Published: April 25, 2024

is considered the closest relative to invasive weed

Language: Английский

Citations

1
Comprehensive characterization and phylogenetic analysis of the complete plastomes of two ant–orchids, Caularthron bicornutum and Myrmecophila thomsoniana DOI Creative Commons
Jinwei Li, Ruyi Li, Yuming Chen

et al.

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Nov. 29, 2024

Myrmecophytes, characterized by specialized structures like hollow stems that facilitate mutualistic relationships with ants, serve as an important system for studying ant-plant interactions and the adaptation mechanisms. Caularthron Myrmecophila are exemplary myrmecophytes within Orchidaceae. Previous studies suggested a genetic relationship between these two genera, placing them Laeliinae (Epidendreae), yet precise phylogenetic positioning remained uncertain. The absence of available plastome resources has hindered investigations into evolution phylogeny. In this study, we sequenced assembled complete plastomes bicornutum thomsoniana to elucidate their characteristics relationships. determined sizes were 150,557 bp C. 156,905 M. thomsoniana, GC contents 37.3% 37.1%, respectively. Notably, exhibited distinctive IR expansion SSC contraction, region measuring only 4532 containing five genes (ccsA, ndhD, rpl32, psaC, trnL-UAG), unique feature observed first time in Epidendreae. Comparative analyses species from related genus Epidendrum revealed conserved genome size, content, gene order. A total 32 33 long sequence repeats, 50 40 tandem 99 109 SSRs identified RSCU analysis demonstrated consistent pattern both plastomes, 29 out 30 codons values greater than 1 featuring A/U at third codon position. Leucine was most prevalent amino acid, while Cysteine least common. Four potential DNA barcoding regions Pi exceeding 0.07, namely ycf1, ccsA–psaC, petN–psbM, accD–psaI, subsequent reconstructions Laeliinae. Phylogenetic underscored close among Caularthron, Epidendrum, Myrmecophila. This study represents comprehensive thomsoniana. Through our characterization analyses, unveiled expansion/SSC contraction further elucidated positions. Our research contributes significant data insights dynamic ant–orchid phylogeny

Language: Английский

Citations

0