2020
DOI: 10.1371/journal.pgen.1008964
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The evolution and functional divergence of the histone H2B family in plants

Abstract: Chromatin regulation of eukaryotic genomes depends on the formation of nucleosome complexes between histone proteins and DNA. Histone variants, which are diversified by sequence or expression pattern, can profoundly alter chromatin properties. While variants in histone H2A and H3 families are well characterized, the extent of diversification of histone H2B proteins is less understood. Here, we report a systematic analysis of the histone H2B family in plants, which have undergone substantial divergence during t… Show more

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Cited by 63 publications
(61 citation statements)
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“…As a result, chromatin in the embryo shows a low H3.1/H3.3 ratio. This is not the only peculiarity of the histone variant repertoire in dry seed embryos, as recent reports revealed enrichment of seed chromatin in a particular H2B variant, termed H2B.8 [ 58 , 59 ]. It is interesting to speculate that these different features of seed chromatin contribute to the highly condensed chromatin state and the small nuclei that characterize the dry seed [ 60 ].…”
Section: Discussionmentioning
confidence: 99%
“…As a result, chromatin in the embryo shows a low H3.1/H3.3 ratio. This is not the only peculiarity of the histone variant repertoire in dry seed embryos, as recent reports revealed enrichment of seed chromatin in a particular H2B variant, termed H2B.8 [ 58 , 59 ]. It is interesting to speculate that these different features of seed chromatin contribute to the highly condensed chromatin state and the small nuclei that characterize the dry seed [ 60 ].…”
Section: Discussionmentioning
confidence: 99%
“…In Arabidopsis, ten H2Bs differ mostly in the lysinerich N-terminal tails and in tissue-specific expression (Bergmuller et al, 2007). Although most appear to be RC H2Bs, H2B.3 is enriched in mature leaves and in nucleosomes containing H3.3 and/or H2A.Z, consistent with it being a RI variant, and H2B.8 is enriched in dry seed (Jiang et al, 2020) (see poster). A similar heterogeneity of RC H2B and H2A proteins is found in humans, mice and sea urchins (Marzluff et al, 2002(Marzluff et al, , 2006.…”
Section: H2b Variantsmentioning
confidence: 90%
“…In addition, users have reported great results achieved using MS Amanda on phosphorylated data sets and it has frequently been used to identify modified peptides [23]- [25]. We therefore analyzed four phospho-enriched HeLa cell lysates from the Chorus Project [26] (https://chorusproject.org/, identifier 1374, DDA files only) and compared results of MS Amanda 2.0 with a search engine thoroughly accepted by the community: X!Tandem [27] (v. 5.0.1).…”
Section: Performance Improvementsmentioning
confidence: 99%