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Inbreeding drives maize centromere evolution

WebJun 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 ( … 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 …

Centromeric retrotransposons and centromere function

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 … WebApr 1, 2024 · Centromeric chromatin is marked epigenetically with the centromere-specific histone H3 protein (cenH3), which interacts with other proteins to seed the proteinaceous … med sea map https://tambortiz.com

Inbreeding drives maize centromere evolution - PubAg

WebAug 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 … 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. 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 medsearch corporation

Maize Centromere Structure and Evolution: Sequence …

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Inbreeding drives maize centromere evolution

Inbreeding drives maize centromere evolution - PubAg

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 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 …

Inbreeding drives maize centromere evolution

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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... WebHere we describe the detailed mechanism and chronology of centromere repeat replacement, and identify inbreeding as a major driver of centromeric DNA replacement …

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 ... 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).

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

WebApr 1, 2024 · Meiotic drive and centromere evolution Meiotic drive, the non-random assortment of allelic haplotypes, may contribute to centromere evolution. A centromere …

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. medsearch onlineWebSep 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... nakto electric bikes for saleWebFeb 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 medsearch recruitmentWebFunctional centromeres, the chromosomal sites of spindle attachment during cell division, are marked epigenetically by the centromere-specific histone H3 variant cenH3 and … nakto elegance city electric bicycleWebThe 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... nakto ranger electric mountain bikeWebCentromere 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, … nak tuinbouw fytosanitair certificaatWebFunctional 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 … nakto city electric bike