BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)
Published: Nov. 8, 2024
The genomes within organelles are crucial for physiological functions such as respiration and photosynthesis may also contribute to environmental adaptation. However, the limited availability of genetic resources, particularly mitochondrial genomes, poses significant challenges in-depth investigations.
Language: Английский
Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16
Published: April 24, 2025
Tea-oil Camellia species play a crucial economic and ecological role worldwide, yet their mitochondrial genomes remain largely unexplored. In this study, we assembled analyzed the complete of oleifera C. meiocarpa, revealing multi-branch structures that deviate from typical circular genome observed in most plants. The mitogenomes span 953,690 bp (C. oleifera) 923,117 meiocarpa), containing 74 76 annotated genes, respectively. Comparative genomic analyses indicated meiocarpa share closer genetic relationship, whereas drupifera is more distantly related. Codon usage analysis revealed natural selection plays dominant shaping codon bias these genomes. Additionally, extensive gene transfer events were detected among three species, highlighting dynamic nature evolution Camellia. Phylogenetic reconstruction based on genes exhibited incongruence with chloroplast phylogenies, suggesting potential discordance due to hybridization events, incomplete lineage sorting (ILS), or horizontal (HGT). Furthermore, identified species-specific markers, which provide valuable molecular tools for distinguishing species. Our findings enhance understanding diversity Camellia, offering essential resources phylogenetics, identification, evolutionary research woody
Language: Английский
Citations
0
Planta, Journal Year: 2024, Volume and Issue: 260(1)
Published: June 8, 2024
Language: Английский
Citations
2
BMC Biology, Journal Year: 2024, Volume and Issue: 22(1)
Published: Oct. 23, 2024
The family Lauraceae is subdivided into six main lineages: Caryodaphnopsideae, Cassytheae, Cryptocaryeae, Hypodaphnideae, Laureae, and Neocinnamomeae. However, phylogenetic relationships among these lineages have been debatable due to incongruence between trees constructed using nuclear ribosomal DNA (nrDNA) sequences chloroplast (cp) genomes. As with cp DNA, the mitochondrial (mt) of most flowering plants maternally inherited, so recovered mt genomes are expected be consistent that from genomes, rather than nrDNA sequences. mitogenome Machilus yunnanensis, a length 735,392 bp, has very different genome size gene linear order previously published magnoliid mitogenomes. Phylogenomic reconstructions based on 41 genes 92 mitogenomes resulted in highly supported relationships: sisterhood Laureae group containing Neocinnamomeae Cassytheae being next sister group, followed by Cryptocaryeae. we found significant mitochondrial, chloroplast, phylogenies, especially for species within Caryodaphnopsideae lineages. Time-calibrated analyses showed split dated later Eocene, around 38.5 Ma, originated Late Cretaceous, 84.9 mid-Cretaceous 102 Cryptocaryeae Early Cretaceous 116 Ma. From Paleocene, net diversification rates significantly increased across extant clades major lineages, both speciation continued steady growth towards present. topology obtained here first time shows can used support Lauraceae. Our results highlight younger thought, likely diversifying other dates long-time span climate period about 90 million years was relatively warm, while then continuously diversified global cooling Eocene present day.
Language: Английский
Citations
2
Plant Communications, Journal Year: 2024, Volume and Issue: 5(7), P. 100878 - 100878
Published: March 11, 2024
Brassicaceae represents an important plant family from both a scientific and economic perspective. However, genomic features related to the early diversification of this have not been fully characterized, especially upon uplift Tibetan Plateau, which was followed by increasing aridity in Asian interior, intensifying monsoons Eastern Asia, significantly fluctuating daily temperatures. Here, we reveal architecture that accompanied analyzing two high-quality chromosome-level genomes for Meniocus linifolius (Arabodae; clade D) Tetracme quadricornis (Hesperodae; E), together with representing all major clades basal Aethionemeae. We reconstructed ancestral core karyotype (CBK) containing 9 pseudochromosomes 65 conserved syntenic blocks identified 9702 genes Brassicaceae. detected pervasive conflicting phylogenomic signals widespread ancient hybridization events, correlate well divergence successive Brassicaceae-specific expansion class I TREHALOSE-6-PHOSPHATE SYNTHASE 1 (TPS1) gene family, encodes enzymes essential regulatory roles flowering time embryo development. The TPS1s were mainly randomly amplified, expression divergence. Our results provide fresh insights into historical coupled evolution offer potential model broad-scale studies adaptive radiation under ever-changing environment.
Language: Английский
Citations
1
Deleted Journal, Journal Year: 2024, Volume and Issue: 6(3)
Published: March 13, 2024
Abstract As a commonly used traditional Chinese medicine, Descurainia sophia has various reported pharmacological activities such as prevention of chronic diseases, cardiovascular protection, neuroprotection, anticancer, antioxidant, and high nutritional values, but its mitochondrial genome (mitogenome) not been reported. In this study, the D. mitogenome was sequenced, assembled annotated using next generation sequencing technologies on Illumina HiSeq PacBio Sequel platform. The results showed that circular DNA molecule with length 265,457 bp GC content 44.78%, encoding unique 56 genes, including 35 protein coding 18 tRNA genes 3 rRNA genes. We analyzed codon preference, repeated sequences, sequence transformation, phylogenetic relationship, RNA editing synteny in mitogenome. Based sequences mitogenomes, analysis indicated more closely related to Boechera stricta , underwent frequent recombination. we obtained complete which can provide valuable data support for future studies genetic characteristics, relationships, species identification development new molecular markers .
Language: Английский
Citations
1
BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)
Published: Nov. 8, 2024
The genomes within organelles are crucial for physiological functions such as respiration and photosynthesis may also contribute to environmental adaptation. However, the limited availability of genetic resources, particularly mitochondrial genomes, poses significant challenges in-depth investigations.
Language: Английский
Citations
0