Characterization of the complete mitogenome of Tiarella polyphylla, commonly known as Asian foamflower: insights into the multi-chromosomes structure and DNA transfers

BMC Genomics, Journal Year: 2024, Volume and Issue: 25(1)

Published: Sept. 19, 2024

Language: Английский

Polyploidy linked with species richness but not diversification rates or niche breadth in Australian Pomaderreae (Rhamnaceae)

Annals of Botany, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 23, 2024

Abstract Background and Aims Polyploidy is an important evolutionary driver for plants has been linked with higher species richness increases in diversification rate. These correlations between ploidy plant radiations could be the result of polyploid lineages exploiting broader niche space novel niches due to their enhanced adaptability. The evolution its link across Australian continent not well understood. Here, we focus on Australasian Rhamnaceae tribe Pomaderreae. Methods We generated a densely sampled phylogeny (90 %, 215/240 species) used it test ploidy. obtained 30 orthologous nuclear loci per sample dated using treePL. Ploidy estimates each sequenced were nQuire, based phased sequence data. MiSSE obtain tip rates tested significant relationships also assessed level breadth, distributional records, modelling WorldClim Key Results extensive tribe, almost half (45 %) majority genera exhibiting this trait. found positive relationship polyploidy genus size (i.e. richness), but non-significant rates. did significantly wider occupancy Pomaderreae; however, allow transitions into wetter niches. Spatially, eastern Australia hotspot Pomaderreae contrast south-west Western Australia. Conclusions complex. Ancient polyploidization events likely played role species-rich genera. A lag time effect may explain uncoupling extant lineages. Further studies other groups are required validate these hypotheses.

Language: Английский

A full genome assembly reveals drought stress effects on gene expression and metabolite profiles in blackcurrant (Ribes nigrum L.)

Horticulture Research, Journal Year: 2024, Volume and Issue: 12(2)

Published: Nov. 11, 2024

Abstract Blackcurrant (Ribes nigrum L., family Grossulariaceae) is a perennial shrub that widely cultivated for its edible berries. These are rich in antioxidants, vitamin C, and anthocyanins, making them valuable ingredient the food beverage industry. However, prolonged periods of drought during fruiting season lead to stress, which has serious ecological agricultural implications, inhibiting blackcurrant growth reducing yields. To facilitate analysis underlying molecular processes, we present first high-quality chromosome-scale partially haplotype-resolved assembly genome (cv. Rosenthals Langtraubige), also Grossulariaceae. We used this genomic reference analyze transcriptomic response leaves roots revealing differentially expressed genes with diverse functions, including those encoding transcription factors bZIP, bHLH, MYB, WRKY, tyrosine kinase-like kinases such as PERK DUF26. Gene expression was correlated abundance primary metabolites, 14 significant differences between stressed controls indicating metabolic stress. Amino acids proline were more abundant under stress conditions, whereas organic depleted. The data from study can be develop robust cultivars thrive conditions.

Language: Английский