01643nam a2200277Ia 4500 MX-MdCICY 20260521091642.0 CICY B-18795 Diversification of histone H2A variants during plant evolution Trends in Plant Science, 20(7), p.419-425, 2015 Among eukaryotes, the four core histones show an extremely high conservation of their structure and form nucleosomes that compact, protect, and regulate access to genetic information. Nevertheless, in multicellular eukaryotes the two families, histone H2A and histone H3, have diversified significantly in key residues. We present a phylogenetic analysis across the green plant lineage that reveals an early diversification of the H2A family in unicellular green algae and remarkable expansions of H2A variants in flowering plants. We define motifs and domains that differentiate plant H2A proteins into distinct variant classes. In non-flowering land plants, we identify a new class of H2A variants and propose their possible role in the emergence of the H2A.W variant class in flowering plants. CHROMATIN EVOLUTION HISTONE H2A Kawashima, T. Lorkovic, Z. J. Nishihama, R. Ishizaki, K. Axelsson, E. Yelagandula, R. Berger, F. https://drive.google.com/file/d/1SCiWX-INB4CVjQxvLLtj8dP6POSEz__X/view?usp=drivesdk Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 28880 28880 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-18795 2025-06-25 16:24:19 2025-06-25 REF1