Inbreeding drives maize centromere evolution
WebCentromeres are the genomic regions that organize and regulate chromosome behaviours during cell cycle, and their variations are associated with genome instability, karyotype evolution and speciation in eukaryotes. The highly repetitive and epigenetic nature of centromeres were documented during the past half century. WebApr 28, 2024 · The original ancestral centromere position still contains maize centromere-specific CentC satellite repeats and a higher amount of the centromeric retroelement CRM2 than the new centromere positions, but is no longer enriched in CenH3. ... Schneider KL, Xie Z, Wolfgruber TK, Presting GG (2016) Inbreeding drives maize centromere evolution. Proc …
Inbreeding drives maize centromere evolution
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WebApr 1, 2024 · Meiotic drive and centromere evolution Meiotic drive, the non-random assortment of allelic haplotypes, may contribute to centromere evolution. A centromere … WebNov 20, 2009 · Maize centromeres are sites of active genome rearrangement. We were able to construct physical maps that traverse the entire B73 centromere region for two chromosomes, allowing us for the …
WebHere we describe the detailed mechanism and chronology of centromere repeat replacement, and identify inbreeding as a major driver of centromeric DNA replacement … WebApr 1, 2024 · To explain the rapid evolution of centromeric DNA and proteins, the centromere drive hypothesis invoked competition between the centromeric DNA and cenH3, Discovery and genomic distribution of plant centromeric retrotransposons
WebJun 11, 2024 · “Environmental mosaics, agricultural diversity, and the evolutionary adoption of maize in the American Southwest,” in Histories of Maize: Multidisciplinary Approaches … WebAug 24, 2016 · Recent cenH3-binding experiments revealed that the maize centromere 5 of the B73 inbred has shifted from its ancestral location enriched in CentC satellite repeats (Schneider et al., 2016). We found that Helitrons are less abundant in CentC-rich regions and are interspersed with all types of CRM elements (Figure S3).
WebFunctional centromeres, the chromosomal sites of spindle attachment during cell division, are marked epigenetically by the centromere-specific histone H3 variant cenH3 and typically contain long stretches of centromere-specific tandem DNA repeats (∼1.8 Mb in maize). In 23 inbreds of domesticated maize chosen to represent the genetic diversity of maize …
WebSep 5, 2014 · Although the two ancestral subgenomes of maize have contributed nearly equal numbers of centromeres, our analysis shows that the majority of all CentC repeats derive from one of the parental... bing chat vs google bardWebOct 30, 2024 · KL Schneider, Z Xie, TK Wolfgruber, GG Presting, Inbreeding drives maize centromere evolution. Proc Natl Acad Sci USA 113, E987–E996 (2016). Crossref. PubMed. Google Scholar. 32. G Vader, et al., Protection of repetitive DNA borders from self-induced meiotic instability. Nature 477, 115–119 (2011). bing chat vscodehttp://www.zeagenomics.org/camp/ bing chat waiWebFunctional centromeres, the chromosomal sites of spindle attachment during cell division, are marked epigenetically by the centromere-specific histone H3 variant cenH3 and … cytolysis diseaseWebOct 9, 2008 · A 745 bp sequence (pSau3A9) located at the centromeres of several cereal species was isolated from a sorghum BAC library by Jiang et al. (1996, Proc. Natl Acad. Sci. USA, 93, 14210–14213).We have amplified a partially homologous 809 bp sequence from barley genomic DNA by PCR and localized it to the centromeres of barley, wheat and rye … bing chat vs google searchWebThe diversity of centromere-specific DNA repeats in different species (centromere paradox) and the seemingly parallel rapid evolution of the cenH3 histone protein have previously … cytolysis in biologyWebJun 21, 2024 · We previously identified two maize inbreds with centromeres at different positions relative to B73: NS701, where centromere 5 is at a different position; and LH74, where centromeres 5 and 8 are at different positions. cytolysis is the same thing as