ArticleMolecular biology reports2020
High allelic diversity of the centromere-specific histone H3 (CENH3) in the legume sainfoin (Onobrychis viciifolia).
Article in Molecular biology reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 authors at 1 institution in 1 country.
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Abstract
The centromere is a structurally and functionally specialized region on each eukaryotic chromosome and is essential for accurate and complete segregation of chromosomes during cell division. Centromeric nucleosomes differ from canonical nucleosomes by replacement of the histone H3 with its centromere-specific variant CENH3. CENH3 is essential for active centromeres in most eukaryotes. Homologs of CENH3 are identified in many organisms. Sainfoin (Onobrychis viciifolia) is an agriculturally important perennial forage and is a legume of the Fabaceae family. There is very limited information on the structure of the sainfoin genome and no data are available on its centromere structure. Here, we aim to characterize the sainfoin CENH3 homolog (OvCENH3). Using a sequence homology-based strategy with gene-specific primers, we were able to clone transcripts from sainfoin total RNA. The amplified clones were sequenced and compared by bioinformatics tools. Four distinct alleles of OvCENH3 were detected. Our study provides the first structural features on sainfoin centromeres with a possible allotetraploid origin for sainfoin. We discuss and compare our findings with that for other important legume species.
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