Inbreeding drives maize centromere evolution

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August undefined, 2024

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 … WebFeb 8, 2016 · Taken together, this evidence strongly suggests that inbreeding, favored by postdomestication selection for centromere-linked genes affecting key domestication or agricultural traits, drives replacement of the tandem centromere repeats in maize and … PDF - Inbreeding drives maize centromere evolution PNAS

Isolation and characterization of centromeric repetitive DNA

WebJul 7, 2024 · Assays of centromeres in 23 maize inbreds strongly suggest that inbreeding is a major driver of centromere DNA replacement, favoured by post‐domestication selection for centromere‐linked genes likely affecting key domestication or agricultural traits (Schneider et al., 2016). Hence, multilayered mechanisms may collaboratively drive the ... WebFeb 9, 2016 · The maize inbred B73 has seven of these complex centromeres and three centromeres composed only of CentC sequences, but numbers and locations of each … income tax ordinance 1984 amended upto 2021

The Genomic Landscape of Centromeres in Cancers

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 … 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. WebCentromere repeats are found in most eukaryotes and play a critical role in kinetochore formation. Though centromere repeats exhibit considerable diversity both within and among species, little is understood about the mechanisms that drive centromere repeat evolution. Here, we use maize as a model to investigate how a complex history involving polyploidy, … income tax ordi

Inbreeding drives maize centromere evolution

PNAS Plus Significance Statements - Abstract - Europe PMC

WebMay 9, 2014 · In contrast to the plant-centric naming convention used currently for CR elements, we classify elements primarily based on their phylogenetic relationships regardless of host plant, using the exhaustively studied maize elements assigned to six differentmore »subfamilies as a standard. WebMar 15, 2024 · Variation in the exact position of CENH3 in centromeric regions in different varieties of maize indicates that centromere inactivation and de novo formation is a natural occurrence on a regular basis [16]. ... Inbreeding drives maize centromere evolution. Proc. Natl. Acad. Sci. U.S.A. (2016) C.J. Farr et al. income tax ordinance 1984 amended pdfWebHere we describe the detailed mechanism and chronology of centromere repeat replacement, and identify inbreeding as a major driver of centromeric DNA replacement … inch to cm conversion rate

"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... " - Inbreeding drives maize centromere evolution

Inbreeding drives maize centromere evolution

Centromeric retrotransposons and centromere function

WebAug 2, 2024 · Strikingly, centromeric variation is a feature present across cancer tissue types, including primary tissue samples, providing further substantiation to the notion that genomic instability in... WebFunctional centromeres, the chromosomal sites of spindle attachment during cell division, are marked epigenetically by the centromere-specific histone H3 variant cenH3 and …

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WebJan 30, 2024 · Wolfgruber, T. K. et al. Maize centromere structure and evolution: sequence analysis of centromeres 2 and 5 reveals dynamic loci shaped primarily by retrotransposons. PLoS Genet 5 , e1000743 (2009).

WebThe ancestral centromeres of maize contain long stretches of the tandemly arranged CentC repeat. The abundance of tandem DNA repeats and centromeric retrotransposons (CR) has presented a... WebFeb 23, 2016 · Here we describe the detailed mechanism and chronology of centromere repeat replacement, and identify inbreeding as a major driver of centromeric DNA replacement that ultimately gives rise to new tandem centromere repeats at genetically indistinguishable loci.

WebThis book provides the biographies, and a related summary, of geneticists and breeders of maize who have contributed to the major discoveries in the 20th century. Their … WebMar 15, 2024 · Two of the most common chromosomal rearrangements during karyotype evolution are end-to-end fusions and nested chromosomal insertions (Lysak et al., 2006; ... Inbreeding drives maize centromere evolution. ... Formation of a functional maize centromere after loss of centromeric sequences and gain of ectopic sequences.

WebFeb 23, 2016 · Inbreeding drives maize centromere evolution. Functional centromeres, the chromosomal sites of spindle attachment during cell division, are marked epigenetically …

WebDec 5, 2008 · Female meiotic drive may explain the rapid diversification of centromeres, the DNA-protein complexes that mediate chromosomal segregation ( 5 ), and may promote speciation through the evolution of hybrid incompatibilities ( 5) and karyotypic rearrangements ( 6 ). inch to cm conversion ukWebApr 1, 2024 · Inbreeding drives maize centromere evolution. Proc Natl Acad Sci, 113 (2016), pp. E987-E996. View in Scopus Google Scholar. An exhaustive analysis of cenH3 location, phylogenetic relationship and change in repeat content over time for each centromere of the ten chromosomes from >25 maize inbreds. 15. income tax options to save taxWebApr 1, 2024 · Centromeric chromatin is marked epigenetically with the centromere-specific histone H3 protein (cenH3), which interacts with other proteins to seed the proteinaceous … income tax ordinance 1984 pdf in banglaWebFeb 23, 2016 · PNAS Plus Significance Statements. Proceedings of the National Academy of Sciences of the United States of America, 23 Feb 2016, 113(8): 1974-1977 PMCID: PMC4776495. Free to read income tax ordinance 1984 bangladesh pdfWebMar 15, 2024 · These findings are cast in the context of subsequent studies on centromere misdivision, the tendency of broken fragments to join chromosome ends, and the realization from genomic sequences that nested chromosomal insertion and end-to-end chromosomal fusions are common features of karyotype evolution. income tax ordinance 1984 amended upto 2020WebSep 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 … income tax ordinance 1984 section 108WebOct 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). inch to cm 2.54 centimeters