Genetics Studies

Multichromosomal mitochondrial genome of Punica granatum: comparative evolutionary analysis and gene transformation from chloroplast genomes.

Scientists sequenced and analyzed the mitochondrial genome of Punica granatum (pomegranate). This study provides valuable insights into the organization, variation, and evolution of mitogenomes in this economically and medicinally significant fruit tree.

Feng L et al (2023).
BMC Plant Biol.
PubMed:
37880586

Genome-wide dissection and haplotype analysis identified candidate loci for nitrogen use efficiency under drought conditions in winter wheat.

Climate change impacts wheat yield through drought and nutrient imbalances. Research on 200 wheat genotypes identified genetic variations in response to drought and nitrogen stress, revealing QTLs linked to these factors. Contrasting haplotypes on chromosomes 1B and 5A affect nitrogen uptake and use efficiency, and a candidate gene for cold shock protein was implicated. These findings could aid the development of diagnostic markers for drought tolerance and nitrogen use efficiency in wheat.

Koua AP et al (2023).
Plant Genome.
PubMed:
37880495

Matrine and Oxymatrine: Evaluating the gene mutation potential using in silico tools and the bacterial reverse mutation assay (Ames test).

Matrine and oxymatrine, alkaloids found in Sophora plants and sometimes in liquorice products, were found unlikely to cause gene mutations. The study highlights the need for further research on secondary plant metabolites. (41 words)

Fischer BC et al (2023).
Mutagenesis.
PubMed:
37877816

Biosynthetic gene cluster synteny: Orthologous polyketide synthases in Hypogymnia physodes, Hypogymnia tubulosa, and Parmelia sulcata.

Scientists analyzed the biosynthetic gene clusters of three lichen species and identified key clusters related to polyketide synthesis. This knowledge can be used for biotechnological applications and to understand the evolution of lichen substances.

Ahmad N et al (2023).
Microbiologyopen.
PubMed:
37877655

Transcriptomics and metabolomics association analysis revealed the responses of Gynostemma pentaphyllum to cadmium.

seedlings of an important medicinal herb were exposed to cadmium (Cd) stress. They showed enhanced antioxidant activity and accumulation of certain metabolites. Genetic analysis identified key genes and metabolic pathways involved. Understanding this response mechanism can help develop varieties with low Cd accumulation.

Zhou Y et al (2023).
Front Plant Sci.
PubMed:
37877087