Jehangir, Maryam Ahmad, Syed F. Cardoso, Adauto L. Ramos, Erica Valente, Guilherme T. Martins, Cesar
Published in
Chromosoma
Supernumerary B chromosomes (Bs) are accessory elements to the regular chromosome set (As) and have been observed in a huge diversity of eukaryotic species. Although extensively investigated, the biological significance of Bs remains enigmatic. Here, we present de novo genome assemblies for the cichlid fish Astatotilapia latifasciata, a well-known ...
Ferretti, Ana B. S. M. Ruiz-Ruano, Francisco J. Milani, Diogo Loreto, Vilma Martí, Dardo A. Ramos, Erica Martins, Cesar Cabral-de-Mello, Diogo C.
Published in
Chromosoma
To better understand the structure and variability of the 45S rDNA cistron and its evolutionary dynamics in grasshoppers, we performed a detailed analysis combining classical and molecular cytogenetic data with whole-genome sequencing in Abracris flavolienata, which shows extraordinary variability in the chromosomal distribution for this element. W...
Sidorenko, Darya S. Sidorenko, Ivan A. Zykova, Tatyana Yu. Goncharov, Fedor P. Larsson, Jan Zhimulev, Igor F.
Published in
Chromosoma
The fourth chromosome smallest in the genome of Drosophila melanogaster differs from other chromosomes in many ways. It has high repeat density in conditions of a large number of active genes. Gray bands represent a significant part of this polytene chromosome. Specific proteins including HP1a, POF, and dSETDB1 establish the epigenetic state of thi...
Wang, Gui-xiang He, Qun-yan Zhao, Hong Cai, Ze-xi Guo, Ning Zong, Mei Han, Shuo Liu, Fan Jin, Wei-wei
Published in
Chromosoma
Centromeres are indispensable functional units of chromosomes. The evolutionary mechanisms underlying the rapid evolution of centromeric repeats, especially those following polyploidy, remain unknown. In this study, we isolated centromeric sequences of Brassica nigra, a model diploid progenitor (B genome) of the allopolyploid species B. juncea (AB ...
Mittal, Priyanka Chavan, Ankita Trakroo, Deepika Shah, Sanket Ghosh, Santanu K.
Published in
Chromosoma
A higher order organization of the centromeres in the form of clustering of these DNA loci has been observed in many organisms. While centromere clustering is biologically significant to achieve faithful chromosome segregation, the underlying molecular mechanism is yet to be fully understood. In budding yeast, a kinetochore-associated protein Slk19...
Ribagorda, Marta Berríos, Soledad Solano, Emanuela Ayarza, Eliana Martín-Ruiz, Marta Gil-Fernández, Ana Parra, María Teresa Viera, Alberto Rufas, Julio S. Capanna, Ernesto
...
Published in
Chromosoma
Natural populations of the house mouse Mus musculus domesticus show great diversity in chromosomal number due to the presence of chromosomal rearrangements, mainly Robertsonian translocations. Breeding between two populations with different chromosomal configurations generates subfertile or sterile hybrid individuals due to impaired meiotic develop...
Singh, Prim B. Shloma, Victor V. Belyakin, Stepan N.
Published in
Chromosoma
Chromosomal imprinting requires an epigenetic system that “imprints” one of the two parental chromosomes such that it results in a heritable (cell-to-cell) change in behavior of the “imprinted” chromosome. Imprinting takes place when the parental genomes are separate, which occurs during gamete formation in the respective germ-lines and post-fertil...
Navarro-Domínguez, Beatriz Martín-Peciña, María Ruiz-Ruano, Francisco J. Cabrero, Josefa Corral, José María López-León, María Dolores Sharbel, Timothy F. Camacho, Juan Pedro M.
Published in
Chromosoma
Parasitism evokes adaptive physiological changes in the host, many of which take place through gene expression changes. This response can be more or less local, depending on the organ or tissue affected by the parasite, or else systemic when the parasite affects the entire host body. The most extreme of the latter cases is intragenomic parasitism, ...
Merigliano, Chiara Mascolo, Elisa Cesta, Anthony Saggio, Isabella Vernì, Fiammetta
Published in
Chromosoma
Aurora-A is a conserved mitotic kinase overexpressed in many types of cancer. Growing evidence shows that Aurora-A plays a crucial role in DNA damage response (DDR) although this aspect has been less characterized. We isolated a new aur-A mutation, named aur-A949, in Drosophila, and we showed that it causes chromosome aberrations (CABs). In additio...
Kumar, Rajendra Lizana, Ludvig Stenberg, Per
Published in
Chromosoma
The 3D organisation of the genome in interphase cells is not a randomly folded polymer. Rather, experiments show that chromosomes arrange into a network of 3D compartments that correlate with biological processes, such as transcription, chromatin modifications and protein binding. However, these compartments do not exist during cell division when t...
