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1. Inferring hypothesis-based transitions in clade-specific models of chromosome number evolution in sedges (Cyperaceae)

Author:
Márquez-Corro, José Ignacio; Martín-Bravo, Santiago; Spalink, Daniel; Luceño, Modesto; Escudero, Marcial
Source:
Molecular phylogenetics and evolution 2019 v.135 pp. 203-209
ISSN:
1055-7903
Subject:
chromosome aberrations; chromosome number; chromosomes,   etc   ; Cyperaceae; genomics; models; phylogeny;     Show all 7 Subjects
Abstract:
... Large-scale changes in chromosome number have been associated with diversification rate shifts in many lineages of plants. For instance, several ancient rounds of polyploidization events have been inferred to promote genomic differentiation and/or isolation and, consequently, angiosperm diversification. Dysploidy, although less studied, has been suggested to also play an important role in angiospe ...
DOI:
10.1016/j.ympev.2019.03.006

2. Xist Deletional Analysis Reveals an Interdependency between Xist RNA and Polycomb Complexes for Spreading along the Inactive X

Author:
Colognori, David; Sunwoo, Hongjae; Kriz, Andrea J.; Wang, Chen-Yu; Lee, Jeannie T.
Source:
Molecular cell 2019 v.74 no.1 pp. 101-117.e10
ISSN:
1097-2765
Subject:
chromosomes,   etc   ; RNA; inactivation; topology;     Show all 4 Subjects
Abstract:
... During X-inactivation, Xist RNA spreads along an entire chromosome to establish silencing. However, the mechanism and functional RNA elements involved in spreading remain undefined. By performing a comprehensive endogenous Xist deletion screen, we identify Repeat B as crucial for spreading Xist and maintaining Polycomb repressive complexes 1 and 2 (PRC1/PRC2) along the inactive X (Xi). Unexpectedl ...
DOI:
10.1016/j.molcel.2019.01.015

3. Chromosome-based gene co-expression analysis reveals regions associated with cancers: chromosome 1 as an example

Author:
Liu, Wei
Source:
Molecular biology reports 2019 v.46 no.2 pp. 1551-1553
ISSN:
0301-4851
Subject:
chromosomes,   etc   ; genes; neoplasms;     Show all 3 Subjects
Abstract:
... Gene co-expression network analysis has been widely performed in systems biology. Here, I use a chromosome-based strategy to find potential chromosome regions associated with disease, and show an example of cancer. All results are available at http://bioinformatics.fafu.edu.cn/chrom-WGCNA/ . ...
DOI:
10.1007/s11033-019-04596-y

4. Structural and copy number chromosome abnormalities in canine cutaneous mast cell tumours

Author:
Vozdova, Miluse; Kubickova, Svatava; Cernohorska, Halina; Fröhlich, Jan; Fictum, Petr; Rubes, Jiri
Source:
Journal of applied genetics 2019 v.60 no.1 pp. 63-70
ISSN:
1234-1983
Subject:
bacterial artificial chromosomes; chromosome aberrations; chromosome painting,   etc   ; dogs; etiology; genes; interphase; mast cells; metaphase; risk assessment; skin neoplasms;     Show all 11 Subjects
Abstract:
... Mast cell tumours (MCTs) are the most common skin tumours in dogs. Their clinical behaviour is variable and their aetiology remains largely unknown. We performed a metaphase fluorescence in situ hybridisation (FISH) with whole chromosome painting probes, and interphase FISH with BAC probes for 14 cancer-related genes to reveal clonal structural chromosome rearrangements and copy number variants (C ...
DOI:
10.1007/s13353-018-0471-4

5. Correction to: Gene overexpression screen for chromosome instability in yeast primarily identifies cell cycle progression genes

Author:
Tutaj, Hanna; Pogoda, Elzbieta; Tomala, Katarzyna; Korona, Ryszard
Source:
Current genetics 2019 v.65 no.2 pp. 493
ISSN:
0172-8083
Subject:
chromosomes,   etc   ; cell cycle; gene overexpression; genes; yeasts;     Show all 5 Subjects
Abstract:
... In the original publication, ‘Frumkin JP et al.’ reference was missed to include in the reference list. The complete reference should read as below. ...
DOI:
10.1007/s00294-018-0893-x

6. Mouse ANKRD31 Regulates Spatiotemporal Patterning of Meiotic Recombination Initiation and Ensures Recombination between X and Y Sex Chromosomes

Author:
Papanikos, Frantzeskos; Clément, Julie A.J.; Testa, Erika; Ravindranathan, Ramya; Grey, Corinne; Dereli, Ihsan; Bondarieva, Anastasiia; Valerio-Cabrera, Sarai; Stanzione, Marcello; Schleiffer, Alexander; Jansa, Petr; Lustyk, Diana; Fei, Ji-Feng; Adams, Ian R.; Forejt, Jiri; Barchi, Marco; de Massy, Bernard; Toth, Attila
Source:
Molecular cell 2019 v.74 no.5 pp. 1069-1085.e11
ISSN:
1097-2765
Subject:
Y chromosome; chromosome segregation,   etc   ; DNA damage; meiosis; mice; models; proteins; spermatocytes;     Show all 8 Subjects
Abstract:
... Orderly segregation of chromosomes during meiosis requires that crossovers form between homologous chromosomes by recombination. Programmed DNA double-strand breaks (DSBs) initiate meiotic recombination. We identify ANKRD31 as a key component of complexes of DSB-promoting proteins that assemble on meiotic chromosome axes. Genome-wide, ANKRD31 deficiency causes delayed recombination initiation. In ...
DOI:
10.1016/j.molcel.2019.03.022

7. Cut-and-Run: A Distinct Mechanism by which V(D)J Recombination Causes Genome Instability

Author:
Kirkham, Christopher M.; Scott, James N.F.; Wang, Xiaoling; Smith, Alastair L.; Kupinski, Adam P.; Ford, Anthony M.; Westhead, David R.; Stockley, Peter G.; Tuma, Roman; Boyes, Joan
Source:
Molecular cell 2019 v.74 no.3 pp. 584-597.e9
ISSN:
1097-2765
Subject:
chromosome breakage; chromosomes,   etc   ; DNA; DNA-binding proteins; antigens; cutting; enzymes; genes; lymphocytic leukemia; patients; signal peptide;     Show all 11 Subjects
Abstract:
... V(D)J recombination is essential to generate antigen receptor diversity but is also a potent cause of genome instability. Many chromosome alterations that result from aberrant V(D)J recombination involve breaks at single recombination signal sequences (RSSs). A long-standing question, however, is how such breaks occur. Here, we show that the genomic DNA that is excised during recombination, the ex ...
DOI:
10.1016/j.molcel.2019.02.025

8. Comparative cytogenetics of the ACPT clade (Anacampserotaceae, Cactaceae, Portulacaceae, and Talinaceae): a very diverse group of the suborder Cactineae, Caryophyllales

Author:
Marinho, Maria Angélica Oliveira; Souza, Gustavo; Felix, Leonardo P.; De Carvalho, Reginaldo
Source:
Protoplasma 2019 v.256 no.3 pp. 805-814
ISSN:
0033-183X
Subject:
chromosome number; chromosomes,   etc   ; Anacampserotaceae; Cactaceae; Montiaceae; Portulaca; Talinaceae; haploidy; karyotyping; monophyly; topology;     Show all 11 Subjects
Abstract:
... The clade ACPT (Anacampserotaceae, Cactaceae, Portulacaceae, and Talinaceae) is the most diverse lineage of the subordem Cactineae. The relationships between these families are still uncertain, with different topologies suggested by phylogenetic analyses with several combinations of markers. Different basic numbers (x) have been suggested for each family and for the subord, often in a contestable ...
DOI:
10.1007/s00709-018-01334-2

9. Characterization of aneuploidy in interspecific hybrid between Urochloa ruziziensis (R. Germ. & Evrard) Crins and Urochloa decumbens (Stapf) R. D. Webster

Author:
de Campos Moraes, Isabella; de Campos Rume, Gabriel; Souza Sobrinho, Fausto; Techio, Vânia Helena
Source:
Molecular biology reports 2019 v.46 no.2 pp. 1931-1940
ISSN:
0301-4851
Subject:
chromosome banding; chromosomes,   etc   ; Urochloa decumbens; Urochloa ruziziensis; genotype; hybrids; inheritance (genetics); interspecific hybridization; karyotyping; tetraploidy; trisomics;     Show all 11 Subjects
Abstract:
... The aim of the study was to characterize the type of aneuploidy present in the hybrid Urochloa ruziziensis × Urochloa decumbens and to confirm the origin of the additional chromosomes through comparative analysis of the hybrid and parental karyotypes. C and CMA banding techniques were used for chromosome differentiation. The parental genotypes showed 36 chromosomes. The hybrid presented plants wit ...
DOI:
10.1007/s11033-019-04643-8

10. Chromothripsis, a credible chromosomal mechanism in evolutionary process

Author:
Pellestor, Franck; Gatinois, Vincent
Source:
Chromosoma 2019 v.128 no.1 pp. 1-6
ISSN:
0009-5915
Subject:
chromosome aberrations; chromosome morphology,   etc   ; apoptosis; bioinformatics; embryogenesis; etiology; evolution; genome; genomics; models; telomeres;     Show all 11 Subjects
Abstract:
... The recent discovery of a new class of massive chromosomal rearrangements, occurring during one unique cellular event and baptized “chromothripsis,” deeply modifies our perception on the genesis of complex genomic rearrangements, but also, it raises the question of the potential driving role of chromothripsis in species evolution. Analyses of the etiology of chromothripsis have led to the identifi ...
DOI:
10.1007/s00412-018-0679-4

11. Cytomolecular analysis of the male sex chromosome of Tropidacris cristata grandis (Thunberg, 1824) (Orthoptera: Romaleidae)

Author:
Baldissera, Joana Neres Cruz; Pine, Mariana Bozina; Lopes, Thayná Bisson Ferraz; Dias, Felipe Cordeiro; de Domenico, Fernando Campos; da Rosa, Renata
Source:
Entomological science 2019 v.22 no.1 pp. 80-85
ISSN:
1343-8786
Subject:
X chromosome; chromosome painting,   etc   ; DNA; Orthoptera; autosomes; genomics; grasshoppers; heterochromatin; hybridization; males; meiosis;     Show all 11 Subjects
Abstract:
... Many species of grasshopper have an XX/XO sex chromosome system, including Tropidacris cristata grandis (23, XX/XO). The X chromosome behaves differently from the autosomes, but little is known about its origin and molecular composition. To better understand the genomic composition and evolutionary processes involved in the origin of the sex chromosomes, we undertook an analysis of its meiotic beh ...
DOI:
10.1111/ens.12338

12. RBMX family proteins connect the fields of nuclear RNA processing, disease and sex chromosome biology

Author:
Elliott, David J.; Dalgliesh, Caroline; Hysenaj, Gerald; Ehrmann, Ingrid
Source:
The international journal of biochemistry & cell biology 2019 v.108 pp. 1-6
ISSN:
1357-2725
Subject:
X chromosome; Y chromosome,   etc   ; DNA repair; RNA; RNA-binding proteins; genes; mammals; neoplasms; transcription (genetics);     Show all 9 Subjects
Abstract:
... RBMX is a ubiquitously expressed nuclear RNA binding protein that is encoded by a gene on the X chromosome. RBMX belongs to a small protein family with additional members encoded by paralogs on the mammalian Y chromosome and other chromosomes. These RNA binding proteins are important for normal development, and also implicated in cancer and viral infection. At the molecular level RBMX family prote ...
DOI:
10.1016/j.biocel.2018.12.014

13. RIPK1 and Caspase-8 Ensure Chromosome Stability Independently of Their Role in Cell Death and Inflammation

Author:
Liccardi, Gianmaria; Ramos Garcia, Laura; Tenev, Tencho; Annibaldi, Alessandro; Legrand, Arnaud J.; Robertson, David; Feltham, Rebecca; Anderton, Holly; Darding, Maurice; Peltzer, Nieves; Dannappel, Marius; Schünke, Hannah; Fava, Luca L.; Haschka, Manuel D.; Glatter, Timo; Nesvizhskii, Alexey; Schmidt, Alexander; Harris, Philip A.; Bertin, John; Gough, Peter J.; Villunger, Andreas; Silke, John; Pasparakis, Manolis; Bianchi, Katiuscia; Meier, Pascal
Source:
Molecular cell 2019 v.73 no.3 pp. 413-428.e7
ISSN:
1097-2765
Subject:
chromosome segregation; chromosomes,   etc   ; apoptosis; caspase-8; genome; homeostasis; inflammation; metaphase; mitosis; necroptosis; phosphorylation; protein kinases;     Show all 12 Subjects
Abstract:
... Receptor-interacting protein kinase (RIPK) 1 functions as a key mediator of tissue homeostasis via formation of Caspase-8 activating ripoptosome complexes, positively and negatively regulating apoptosis, necroptosis, and inflammation. Here, we report an unanticipated cell-death- and inflammation-independent function of RIPK1 and Caspase-8, promoting faithful chromosome alignment in mitosis and the ...
DOI:
10.1016/j.molcel.2018.11.010

14. Meiotic chromosomal recombination defect in sake yeasts

Author:
Shimoi, Hitoshi; Hanazumi, Yuta; Kawamura, Natsuki; Yamada, Miwa; Shimizu, Shohei; Suzuki, Taro; Watanabe, Daisuke; Akao, Takeshi
Source:
Journal of bioscience and bioengineering 2019 v.127 no.2 pp. 190-196
ISSN:
1389-1723
Subject:
chromosome elimination; chromosomes,   etc   ; Saccharomyces cerevisiae; asci; genome; haploidy; heterozygosity; hybridization; meiosis; rapamycin; sake; spores; sporulation; yeasts;     Show all 14 Subjects
Abstract:
... Sake yeast strains are classified into Saccharomyces cerevisiae and have a heterothallic life cycle. This feature allows cross hybridization between two haploids to breed new strains with superior characteristics. However, cross hybridization of sake yeast is very difficult because only a few spores develop in a sporulation medium, and most of these spores do not germinate. We hypothesized that th ...
DOI:
10.1016/j.jbiosc.2018.07.027

15. The role of chromosome changes in the diversification of Passiflora L. (Passifloraceae)

Author:
Sader, Mariela A.; Amorim, Bruno S.; Costa, Lucas; Souza, Gustavo; Pedrosa-Harand, Andrea
Source:
Systematics and biodiversity 2019 v.17 no.1 pp. 7-21
ISSN:
1478-0933
Subject:
chromosome number; chromosomes,   etc   ; Miocene epoch; Neotropics; Passiflora; genome; karyotyping; phylogeny; polyploidy; species diversity;     Show all 10 Subjects
Abstract:
... Passiflora L. has more than 575 species distributed especially in the Neotropics. The chromosome number variation in the genus is highly congruent with its main subgenera, but its basic chromosome number (x) and the underlying events responsible for this variation have remained controversial. Here, we provide a robust and well-resolved time-calibrated phylogeny that includes 102 taxa, and by means ...
DOI:
10.1080/14772000.2018.1546777

16. Rapid method to obtain high quality nuclear and chromosome images directly from living cells in the Characeae

Author:
Gargiulo, Gaetano M.; Gemelli, Federica; Cambrea, Giuseppe; Ferraro, Giusy Bonanno; Crosca, Alice
Source:
Phycological research 2019 v.67 no.1 pp. 72-76
ISSN:
1322-0829
Subject:
chromosome morphology; chromosomes,   etc   ; Nitella; alkaline hydrolysis; dyes; herbaria; rapid methods; staining;     Show all 8 Subjects
Abstract:
... This study focused on a method based on the capacity of cationic dyes to stain only the nucleus and chromosomes in cells subjected to either acid or alkaline hydrolysis. The method and the squash were optimized for the Characeae and were described in detail. Nuclei from vegetative shoot apices and antheridial filament cells of unfixed, fixed and herbarium material of Nitella opaca were investigate ...
DOI:
10.1111/pre.12335

17. 45S rDNA sites in meiosis of Lolium multiflorum Lam.: variability, non-homologous associations and lack of fragility

Author:
Rocha, Laiane Corsini; Ferreira, Marco Túlio Mendes; Cunha, Isabela Martinez Fontes; Mittelmann, Andréa; Techio, Vânia Helena
Source:
Protoplasma 2019 v.256 no.1 pp. 227-235
ISSN:
0033-183X
Subject:
chromosome pairing; chromosomes,   etc   ; Lolium multiflorum; karyotyping; meiosis; metaphase; mitosis; prophase; ribosomal DNA;     Show all 9 Subjects
Abstract:
... In this study, we evaluated the behavior of 45S ribosomal DNA (rDNA) sites during the meiosis of Lolium multiflorum. The reason to study it in this species is that 45S rDNA sites are usually visualized as gaps in mitotic metaphase chromosomes and were initially denominated fragile sites (FSs). In different species, FSs were related to rearrangements that alter the karyotype and affect the chromoso ...
DOI:
10.1007/s00709-018-1292-3

18. The cytotaxonomy of Piptatherum kuoi (Stipeae, Poaceae)

Author:
Zhang, Zhong‐Shuai; Chen, Wen‐Li
Source:
Nordic journal of botany 2018 v.36 no.10 pp. e01929
ISSN:
0107-055X
Subject:
chromosome number; chromosomes,   etc   ; Stipa; karyotyping; phylogeny;     Show all 5 Subjects
Abstract:
... The generic placement of Piptatherum kuoi (Poaceae, Stipeae) has long been controversial. Recent molecular phylogenetic analyses indicate that Piptatherum kuoi should be transferred to Patis. Here, we present cytological support for this transfer and discuss morphological differences and similarities. Piptatherum kuoi has a chromosome number of 2n = 46 with the chromosomes varying in length betwee ...
DOI:
10.1111/njb.01929

19. Chromosome number and karyotype of Phaenospermateae and Duthieeae (Poaceae), with reference to their systematic implications

Author:
Zhang, Zhong‐Shuai; Li, Ling‐Lu; Chen, Wen‐Li
Source:
Nordic journal of botany 2018 v.36 no.9 pp. e01918
ISSN:
0107-055X
Subject:
chromosome number; chromosomes,   etc   ; Brachypodium; karyotyping; phylogeny;     Show all 5 Subjects
Abstract:
... Recent molecular phylogenetic studies indicate that Phaenospermateae and Duthieeae are among the early diverging lineages of Pooideae and that they are closely related to each other. Here, we test this with cytotaxonomical data. The monotypic tribe Phaenospermateae, represented by Phaenosperma globosum, has a chromosome number of 2n = 2x = 24 and a fairly symmetric karyotype consisting of 22 media ...
DOI:
10.1111/njb.01918

20. Chromosome counts and karyotype analysis of some representatives of genus Cirsium Mill. (Asteraceae) in Turkey

Author:
Polat, Nevra; Kiran, Yaşar; Şahin, Ahmet; Yildiz, Bayram; Arabaci, Turan
Source:
Caryologia 2018 v.71 no.2 pp. 133-138
ISSN:
2165-5391
Subject:
chromosome number; chromosomes,   etc   ; Cirsium; karyotyping; Turkey (country);     Show all 5 Subjects
Abstract:
... The chromosome number and karyotype analysis of nine species (10 taxa) of genus Cirsium Mill. distributed in Turkey were analyzed. The somatic chromosome number of Cirsium sipyleum O. Schwarz, C. candelabrum Griseb., C. creticum d’Urv. subsp. creticum, C. elodes M. Bieb., C. subinerme Fisch. & C. A. Mey., C. leucopsis DC., C. libanoticum DC. subsp. arachnoideum P. H. Davis & Parris and C. arvense ...
DOI:
10.1080/00087114.2018.1447630