Evolution of sexual systems and regressive evolution in Riccia

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

The genus Riccia is the most speciose of Marchantiopsida, complex thalloid liverworts. In contrast to predicted ancestral liverwort and majority extant liverworts that are dioicous, species monoicous. Both gametophyte sporophyte generations have undergone regressive evolution in Riccia, with lacking many adaptations for spore dispersal. Phylogenetic reconstructions suggest multiple transitions between dioicy monoicy, vice versa, within Riccia. We analysed genomes two transcriptomes additional explore sexual systems investigate genomic signatures evolution. Genomic analyses a transition from monoicy at base clade subsequent reversion concomitant new sex chromosome, followed by further back monoicy. Additionally, exhibit significant losses transcription factors known control aspects development. Comparisons monotypic sister genus, Ricciocarpos, independent evolutions both reductive morphologies genera. morphology has facilitated their colonization extreme habitats but perhaps canalized them remain there.

Language: Английский

Decoding genetic diversity through genome engineering in bryophytes

The Plant Journal, Journal Year: 2025, Volume and Issue: 121(6)

Published: March 1, 2025

SUMMARY Bryophytes, which include mosses, liverworts, and hornworts, have evolved a highly successful strategy for thriving in terrestrial environments, allowing them to occupy nearly every land ecosystem. Their success is due unique combination of biochemical adaptations, diverse structural forms, specialized life cycle strategies. The key their evolutionary lies genomic diversity. To fully decode this diversity, the use advanced genome engineering techniques crucial. In review, we explore diversity bryophytes latest advancements studies engineering, ranging from precise gene editing whole‐genome synthesis. Notably, moss Physcomitrium patens stands out as only plant capable efficiently utilizing homologous recombination engineering. This capability has heralded new era synthetic genomics. By focusing on bryophytes, emphasize potential benefits unraveling genetic traits, could significant implications across various scientific fields, fundamental biology biotechnological applications.

Language: Английский

Natural variation of ClCCT promoter promotes flowering and dwarfing in adlay (Coix lacryma-jobi L.)

The Crop Journal, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский