Phylogenetic relationships, selective pressure and molecular markers development of six species in subfamily Polygonoideae based on complete chloroplast genomes

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: April 29, 2024

Abstract The subfamily Polygonoideae encompasses a diverse array of medicinal and horticultural plants that hold significant economic value. However, due to the lack robust taxonomy based on phylogenetic relationships, classification within this family is perplexing, there also scarcity reports chloroplast genomes many falling under classification. In study, we conducted comprehensive analysis by sequencing characterizing complete six plants, namely Pteroxygonum denticulatum , Pleuropterus multiflorus ciliinervis Fallopia aubertii dentatoalata convolvulus . Our findings revealed these possess with typical quadripartite structure, averaging 162,931 bp in length. Comparative analysis, codon usage repetitive sequence demonstrated high level conservation plants. Furthermore, unveiled distinct clade occupied P. while ciliinrvis displayed closer relationship three belonging genus. Selective pressure maximum likelihood trees showed total 14 protein-coding genes exhibited positive selection, psbB ycf1 having highest number amino acid sites. Additionally, identified four molecular markers, petN-psbM psal-ycf4 ycf3-trnS-GGA trnL-UAG-ccsA which exhibit variability can be utilized for identification

Language: Английский

Biogeography of a Global Plant Invader: From the Evolutionary History to Future Distributions

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(12)

Published: Dec. 1, 2024

Biological invasions pose a global challenge, affecting ecosystems worldwide and human societies. Knowledge of the evolutionary history invasive species is critical to understanding their current invasion success projecting future spread. However, date, few studies have addressed potential spread invaders simultaneously. In this study, we explored both spatiotemporal dynamic patterns distribution Reynoutria japonica, known as one world's worst plant invaders. We analysed 265 R. japonica samples from its geographical ranges across three continents, using seven chloroplast DNA (cpDNA) markers establish phylogenetic relationships among extant populations. combined these with ecological niche modelling infer historical more recent migration predict changes under climate change. Our results indicate that fluctuations sea level likely facilitated expansion southern Japan continental East Asia in Pliocene, followed by contraction Asian Holocene, activities then enabled linage Europe North America, resulting major clades. Future scenarios suggest northward but shrinking habitat China. thus, demonstrates complex influences climate-driven migrations, on an species.

Language: Английский

De novo assembly and comparative analysis of the mitochondrial genome of Reynoutria japonica

Frontiers in Genetics, Journal Year: 2023, Volume and Issue: 14

Published: Nov. 23, 2023

Reynoutria japonica Houtt. is an important medical plant with a long history of thousands years in China, however, its mitochondrial genome (mitogenome) has not been reported yet. In this work, we and analyzed the R. mitogenome. The main results include: mitogenome was 302,229 bp length encoded 48 genes, including 27 protein-coding genes (PCGs), 3 rRNA 18 tRNA genes. Repeat sequence analysis revealed that there were 54 repeat sequences ranging from 193 to 1,983 Relative synonymous codon usage (RSCU) showed leucine (900, 11.01%) serine (732, 8.96%) two most abundant amino acids, codons RSCU values preference A or T ending when greater than 1. RNA editing sites PCGs characterized, 299 found. Extensive transfer between mitochondrion chloroplast found japonica, where 11 complete plastid-derived stayed intact Three (ccmFC, cox1, nad1) seen play essential roles evolution through selection pressure analysis. phylogenetic Fallopia multiflora closest species consistency genome. Overall, current work presents first could contribute family Polygonaceae.

Language: Английский