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Research: Strong bias in long-read sequencing prevents assembly of Drosophila melanogaster Y-linked genes
- A. Bernardo Carvalho,
- Bernard Y. Kim,
- and Fabiana Uno
Genome Res. January 2026 36: 71-82; Published in Advance October 1, 2025, doi:10.1101/gr.280604.125
..., the clearest one against GA-rich repeats in the human . However, our study reveals a systematic failure of both technologies to sequence and assemble specific exons of Drosophila melanogaster genes, indicating an overlooked limitation. Namely, multiple Y-linked exons are nearly or completely absent from raw...
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Research: Cell-type- and chromosome-specific chromatin landscapes and DNA replication programs of Drosophila testis tumor stem cell–like cells
- Jennifer A. Urban,
- Daniel Ringwalt,
- John M. Urban,
- Wingel Xue,
- Ryan Gleason,
- Keji Zhao,
- and Xin Chen
Genome Res. January 2026 36: 83-101; Published in Advance December 10, 2025, doi:10.1101/gr.280809.125
...Cell-type- and chromosome-specific chromatin landscapes and DNA replication programs of Drosophila testis tumor stem cell–like cells Jennifer A. Urban1, Daniel Ringwalt1, John M. Urban2,3, Wingel Xue1,5, Ryan Gleason1, Keji Zhao4 and Xin Chen1,2 1Department of Biology, The Johns Hopkins University...
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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
...Genetic variation in recalcitrant repetitive regions of the Drosophila melanogaster Harsh G. Shukla1,2, Mahul Chakraborty3 and J.J. Emerson1,4 1Department of Ecology and Evolutionary Biology, University of California Irvine, Irvine, California 92697, USA; 2Graduate Program in Mathematical...
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Research: Rapid evolution of piRNA clusters in the Drosophila melanogaster ovary
- Satyam P. Srivastav,
- Cédric Feschotte,
- and Andrew G. Clark
Genome Res. May 2024 34: 711-724; Published in Advance May 15, 2024, doi:10.1101/gr.278062.123
...in Drosophila melanogaster, much less is known about the origin and evolution of piCs in this or any other species. To investigate piC origin and evolution, we use a population genomic approach to compare piC activity and sequence composition across eight geographically distant strains of D. melanogaster...
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Research: Ultraviolet damage and repair maps in Drosophila reveal the impact of domain-specific changes in nucleosome repeat length on repair efficiency
- Benjamin Morledge-Hampton,
- Kathiresan Selvam,
- Manish Chauhan,
- Alan G. Goodman,
- and John J. Wyrick
Genome Res. February 2025 35: 257-267; Published in Advance January 6, 2025, doi:10.1101/gr.279605.124
...this information to divide the Drosophila into five chromatin types, each originally labeled with a different color (Filion et al. 2010). These include three heterochromatin-like states (repressive chromatin [BLACK], Polycomb group [PcG] heterochromatin [BLUE], and centromeric chromatin [GREEN]) and two...
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Research: Variation in mutation, recombination, and transposition rates in Drosophila melanogaster and Drosophila simulans
- Yiguan Wang,
- Paul McNeil,
- Rashidatu Abdulazeez,
- Marta Pascual,
- Susan E. Johnston,
- Peter D. Keightley,
- and Darren J. Obbard
Genome Res. April 2023 33: 587-598; Published in Advance April 10, 2023, doi:10.1101/gr.277383.122
...to ongoing selection, and levels of genetic load. However, even for key evolutionary model species such as Drosophila melanogaster and Drosophila simulans, few estimates of these parameters are available, and we have little idea of how rates vary between individuals, sexes, or populations. Knowledge...
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Research: Experimentally evolving Drosophila erecta populations may fail to establish an effective piRNA-based host defense against invading P-elements
- Divya Selvaraju,
- Filip Wierzbicki,
- and Robert Kofler
Genome Res. March 2024 34: 410-425; Published in Advance March 15, 2024, doi:10.1101/gr.278706.123
...eukaryotic transposons, into naive lines of Drosophila erecta. We monitored the invasion in three replicates for more than 50 generations by sequencing the genomic DNA (using short and long reads), the small RNAs, and the transcriptome at regular intervals. A piRNA-based host defense was rapidly established...
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Research: Population genomics reveals mechanisms and dynamics of de novo expressed open reading frame emergence in Drosophila melanogaster
- Anna Grandchamp,
- Lucas Kühl,
- Marie Lebherz,
- Kathrin Brüggemann,
- John Parsch,
- and Erich Bornberg-Bauer
Genome Res. June 2023 33: 872-890; Published in Advance July 13, 2023, doi:10.1101/gr.277482.122
...nucleotide diversity on the X Chromosome compared to the autosomes. These results were also observed in Drosophila simulans (Begun et al. 2007). Our results show exactly the same pattern, with reduced nucleotide diversity π between lines in telomeres and centromeres. Moreover, the average and median...
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Research: Evolution of genome structure in the Drosophila simulans species complex
- Mahul Chakraborty,
- Ching-Ho Chang,
- Danielle E. Khost,
- Jeffrey Vedanayagam,
- Jeffrey R. Adrion,
- Yi Liao,
- Kristi L. Montooth,
- Colin D. Meiklejohn,
- Amanda M. Larracuente,
- and J.J. Emerson
Genome Res. March 2021 31: 380-396; Published in Advance February 9, 2021, doi:10.1101/gr.263442.120
...Evolution of structure in the Drosophila simulans species complex Mahul Chakraborty1,7, Ching-Ho Chang2,7,8, Danielle E. Khost2,3, Jeffrey Vedanayagam4, Jeffrey R. Adrion5, Yi Liao1, Kristi L. Montooth6, Colin D. Meiklejohn6, Amanda M. Larracuente2 and J.J. Emerson1 1Department of Ecology...
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Research: Transposable element accumulation drives size differences among polymorphic Y Chromosomes in Drosophila
- Alison H. Nguyen,
- Weixiang Wang,
- Emily Chong,
- Kamalakar Chatla,
- and Doris Bachtrog
Genome Res. June 2022 32: 1074-1088; Published in Advance May 2, 2022, doi:10.1101/gr.275996.121
...of nucleotide variation, yet they often display high amounts of structural diversity. Dobzhansky cataloged several morphologically distinct Y Chromosomes in Drosophila pseudoobscura that differ in size and shape, but the molecular causes of their large size differences are unclear. Here we use cytogenetics...

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