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METHODS: A Novel Chromatin Immunoprecipitation and Array (CIA) Analysis Identifies a 460-kb CENP-A-Binding Neocentromere DNA
- Anthony W.I. Lo,
- Dianna J. Magliano,
- Mandy C. Sibson,
- Paul Kalitsis,
- Jeffrey M. Craig,
- and K.H. Andy Choo
Genome Res. March 1, 2001 11: 448-457; Published in Advance February 8, 2001, doi:10.1101/gr.167601
...of these features in neocentromerization is discussed. Neocentromeres are fully functional centromeres that originate on some human marker chromosomes from interstitial chromosomal DNA segments ( Choo 1997a ). Neocentromeres, like the normal centromeres, maintain correct mitotic segregation properties of the marker...
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Research: Genetic variation in recalcitrant repetitive regions of the Drosophila melanogaster genome
- Harsh G. Shukla,
- Mahul Chakraborty,
- and J.J. Emerson
Genome Res. September 2025 35: 2023-2040; Published in Advance July 16, 2025, doi:10.1101/gr.280728.125
...and the species-specific X-linked cluster of Stellate (Ste) genes are examples of two recalcitrant tandem arrays in D. melanogaster shaped by different evolutionary forces. The histone locus has a tandem organization with the quintet of five histone genes (H1, H2B, H2A, H4, H3, from distal to proximal) arrayed...
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Perspective: The genetics and epigenetics of satellite centromeres
- Paul B. Talbert and
- Steven Henikoff
Genome Res. April 2022 32: 608-615; Published in Advance March 31, 2022, doi:10.1101/gr.275351.121
...centromeres in animals and plants are usually located within species-specific, very highly repeated tandem head-to-tail arrays of noncoding sequences known as satellites, which typically comprise both the centromere and the flanking pericentromere of animal and plant chromosomes (Plohl et al. 2014). Satellite...
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Research: Orc4 spatiotemporally stabilizes centromeric chromatin
- Lakshmi Sreekumar,
- Kiran Kumari,
- Krishnendu Guin,
- Asif Bakshi,
- Neha Varshney,
- Bhagya C. Thimmappa,
- Leelavati Narlikar,
- Ranjith Padinhateeri,
- Rahul Siddharthan,
- and Kaustuv Sanyal
Genome Res. April 2021 31: 607-621; Published in Advance January 29, 2021, doi:10.1101/gr.265900.120
..., the establishment of centromeric chromatin and its subsequent propagation through many generations depends on a variety of factors that are often species specific. These include centromere-specific DNA sequence elements, replication timing, and transcriptional status of centromere DNA, as well as the influence...
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Research: Genome-wide mapping reveals R-loops associated with centromeric repeats in maize
- Yang Liu,
- Qian Liu,
- Handong Su,
- Kunpeng Liu,
- Xue Xiao,
- Wei Li,
- Qianwen Sun,
- James A. Birchler,
- and Fangpu Han
Genome Res. August 2021 31: 1409-1418; Published in Advance July 9, 2021, doi:10.1101/gr.275270.121
...(Belotserkovskii et al. 2018). Structurally, the hybrid adopts an intermediate A/B conformation, carrying more stability than either double-stranded DNA (dsDNA, B form) or dsRNA (A form) (Shaw and Arya 2008). R-loop structures have long been considered to be mere “by-products” of transcription that occur...
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Research: Damage-responsive elements in Drosophila regeneration
- Elena Vizcaya-Molina,
- Cecilia C. Klein,
- Florenci Serras,
- Rakesh K. Mishra,
- Roderic Guigó,
- and Montserrat Corominas
Genome Res. December 2018 28: 1852-1866; Published in Advance November 20, 2018, doi:10.1101/gr.233098.117
..., whereas iDRREs tend to be more species specific (Fig. 5F). This suggests that eDRREs might be involved in the core regulation of regeneration pathways common to all insects. Previous work already demonstrated the activity of several of these conserved enhancers in different Drosophila species using...
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