Inbreeding drives maize centromere evolution

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August undefined, 2024

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 …

Improved maize reference genome with single-molecule technologies …

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, … WebOct 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). software rx 6400

Centromeric retrotransposons and centromere function

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 … 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. WebAug 2, 2024 · The interaction between centromeres, kinetochores and microtubule polymers lies at the nexus of metaphase and anaphase, ensuring faithful separation of the sister … slow man shoes men

Evolution of Centromeric Retrotransposons in Grasses

Inbreeding drives maize centromere evolution - PubAg

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). 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 software rufusWebJun 12, 2024 · On the basis of 65× single-molecule real-time sequencing (SMRT) ( Extended Data Fig. 1 ), we assembled the genome of the maize inbred line B73 into 2,958 contigs, in which half of the total assembly is made up of contigs larger than 1.2 Mb ( … software rym

"WebInbreeding drives maize centromere evolution Kevin L. Schneider, Zidian Xie, Thomas K. Wolfgruber, and Gernot G. Presting The diversity of centromere-specific DNA repeats in different species (centromere paradox) and the seemingly parallel rapid evolution of the cenH3 histone protein have previously been " - Inbreeding drives maize centromere evolution

Inbreeding drives maize centromere evolution

Centromere-Associated Female Meiotic Drive Entails Male ... - Science

WebMar 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. 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.

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WebFunctional centromeres, the chromosomal sites of spindle attachment during cell division, are marked epigenetically by the centromere-specific histone H3 variant cenH3 and … 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...

WebFeb 8, 2016 · Taken together, this evidence strongly suggests that inbreeding, favored by postdomestication selection for centromere-linked genes affecting key domestication or … 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...

Webcentromere chromatin Goals / Objectives 1) Identify and date the insertion times of most complete retrotransposons of the maize inbred B73 genome. 2) Characterize major … 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 …

WebJun 21, 2024 · Paradoxically, centromeres are known both for their characteristic repeat sequences (satellite DNA) and for being epigenetically defined. Maize (Zea mays mays) is …

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. software rubyWebDec 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 ). software rx580WebApr 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. slow man shoes womenWebThis 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 … software rx550 4gbWebApr 1, 2024 · Centromeric chromatin is marked epigenetically with the centromere-specific histone H3 protein (cenH3), which interacts with other proteins to seed the proteinaceous … slow man tennis shoesWebSep 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 … slow manufacturingWebAug 8, 2024 · The FISH barcode system emerges as an effective tool to understand the chromosome evolution of economically important legumes and their related species. ... We also detected centromere repositioning associated with chromosomes 2, 3, 5, 7, and 9, confirming previous results for chromosomes 2 and 3. ... Presting GG (2016) Inbreeding … software rzl