Comparative and phylogenetic analysis of the complete chloroplast genome sequences of Melanoseris cyanea group

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 27, 2025

Melanoseris, a diverse genus in the Lactucinae subtribe, has 21 species China, with 13 being endemic. The high diversity of this presents taxonomic challenges, particularly M. cyanea group, where overlapping distributions and transitional morphological traits complicate classification. This study aims to analyze chloroplast genomes focus on explore structural differences phylogenetic relationships among these closely related species. We analyzed 16 Melanoseris samples, including 12 new from group. genome sizes ranged 152,255 152,558 bp exhibited typical quadripartite structure, an average GC content 37.7%. Each encodes 132 genes, 87 protein-coding 37 tRNAs, 8 rRNAs. Repeat analysis identified 89 105 dispersed repeats, 24 28 tandem 35 39 SSRs, mononucleotide A/T repeats most common. Sequence alignment revealed that variable regions were mainly concentrated single-copy regions. Nucleotide 0 0.00485, highlighting 10 mutation hotspot Phylogenetic showed limited differentiation within research enhances our understanding genetic laying foundation for future studies.

Language: Английский

Inheritance of Mitochondria in Pelargonium Section Ciconium (Sweet) Interspecific Crosses

International Journal of Plant Biology, Journal Year: 2024, Volume and Issue: 15(3), P. 586 - 598

Published: June 30, 2024

We have studied the inheritance of mitochondria in Pelargonium section Ciconium using 36 interspecific crosses generated. designed KASP markers targeting four mitochondrial loci, belonging to mitomes main crossing parents, enabling tracking transmission each mitome crosses. These discriminate between an individual species versus other species. found that maternal is most frequent, with occasional occurrences paternal inheritance, while biparental rare. For a P. multibracteatum series, we ambiguous results. Our results confirm those previous studies, namely, can occur sect but instance rare and much less common than case for chloroplasts.

Language: Английский

Inheritance of Mitochondria in <em>Pelargonium</em> Section <em>Ciconium</em> (Sweet) Interspecific Crosses

Published: April 24, 2024

We have studied the inheritance of mitochondria in Pelargonium section Ciconium using interspecific crosses. generated 36 different designed KAPS markers targeting four individual mitochondrial markers, belonging to main crossing parents, that discriminate between an species and other species. found maternal is most frequent, but we find occasional occurrences paternal inheritance, while biparental rare. For P. multibracteatum series ambiguous results. Our results confirm what was before, namely can occur sect instance rare much less common than case for chloroplasts.

Language: Английский