scholarly journals Expression Profile and Gene Age Jointly Shaped the Genome-Wide Distribution of Premature Termination Codons in a Drosophila melanogaster Population

2014 ◽  
Vol 32 (1) ◽  
pp. 216-228 ◽  
Author(s):  
Haiwang Yang ◽  
Bin Z. He ◽  
Huijing Ma ◽  
Shun-Chern Tsaur ◽  
Chenyu Ma ◽  
...  
Genes ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 417
Author(s):  
Varvara A. Khoroshko ◽  
Galina V. Pokholkova ◽  
Victor G. Levitsky ◽  
Tatyana Yu. Zykova ◽  
Oksana V. Antonenko ◽  
...  

The Drosophila melanogaster polytene chromosomes are the best model for studying the genome organization during interphase. Despite of the long-term studies available on genetic organization of polytene chromosome bands and interbands, little is known regarding long gene location on chromosomes. To analyze it, we used bioinformatic approaches and characterized genome-wide distribution of introns in gene bodies and in different chromatin states, and using fluorescent in situ hybridization we juxtaposed them with the chromosome structures. Short introns up to 2 kb in length are located in the bodies of housekeeping genes (grey bands or lazurite chromatin). In the group of 70 longest genes in the Drosophila genome, 95% of total gene length accrues to introns. The mapping of the 15 long genes showed that they could occupy extended sections of polytene chromosomes containing band and interband series, with promoters located in the interband fragments (aquamarine chromatin). Introns (malachite and ruby chromatin) in polytene chromosomes form independent bands, which can contain either both introns and exons or intron material only. Thus, a novel type of the gene arrangement in polytene chromosomes was discovered; peculiarities of such genetic organization are discussed.


Genetics ◽  
1996 ◽  
Vol 144 (4) ◽  
pp. 1511-1518
Author(s):  
Evgeniy S Balakirev ◽  
Francisco J Ayala

We have amplified and sequenced the gene encoding Esterase-P (Est-P) in 10 strains of Drosophila melanogaster. Three premature termination codons occur in the coding region of the gene in two strains. This observation, together with other indirect evidence, leads us to propose that Est-P may he a pseudogene in D. melanogaster. Est-P would he a “cryptic” pseudogene, in the sense that it retains intact the coding sequence (without stop codons and other alterations usually observed in pseudogenes) in most D. melanogaster strains. We conjecture that the β-esterase cluster may consist in other Drosophila species of functional and nonfunctional genes. We also conjecture that the rarity of detected pseudogenes in Drosophila may he due to the difficulty of discovering them, because most of them are cryptic.


BMC Genomics ◽  
2009 ◽  
Vol 10 (1) ◽  
pp. 56 ◽  
Author(s):  
Anna Wetterbom ◽  
Ulf Gyllensten ◽  
Lucia Cavelier ◽  
Tomas F Bergström

2020 ◽  
Vol 52 (5) ◽  
Author(s):  
De-Gong Wu ◽  
Qiu-Wen Zhan ◽  
Hai-Bing Yu ◽  
Bao-Hong Huang ◽  
Xin-Xin Cheng ◽  
...  

2021 ◽  
Vol 42 (5) ◽  
pp. 551-566
Author(s):  
Sandra Luna ◽  
Leire Torices ◽  
Janire Mingo ◽  
Laura Amo ◽  
Isabel Rodríguez‐Escudero ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Hong Zhang ◽  
Yirong Wang ◽  
Xinkai Wu ◽  
Xiaolu Tang ◽  
Changcheng Wu ◽  
...  

A Correction to this paper has been published: https://doi.org/10.1038/s41467-021-22435-2


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