Results 61 to 70 of about 12,452,954 (349)
bioRxiv, 2016 Chromosome number is a key feature of the higher-order organization of the genome, and changes in chromosome number play a fundamental role in evolution.
William A. Freyman, S. Höhna
semanticscholar +1 more source
Problematic octaploid forms and a new chromosome number in the genus Achillea L., 2n = 126
Acta Societatis Botanicorum Poloniae, 2014 Among the offspring of a problematic form of Achillea sp., a 2n = 126 seedling which probably arose as the result of fusion of unreduced octo- and hexaploid gametes (72 + 54) was found along with seedlings having an octaploid chromosome number (2n = 72).
Janina Dąbrowska
doaj +1 more source
Cytogenetic study and pollen viability of four populations of Trigonella [PDF]
Journal of Cell and Molecular Research, 2011 In the present paper, the cytogenetic study including meiotic chromosome number and behavior along with pollen viability were performed in 4 populations of Trigonella spruneriana Boiss. This is the first cytogenetic report of the taxon.
Masood Ranjbar +2 more
doaj +1 more source
PLoS ONE, 2016 Chromosome number change (polyploidy and dysploidy) plays an important role in plant diversification and speciation. Investigating chromosome number evolution commonly entails ancestral state reconstruction performed within a phylogenetic framework ...
Jamie McCann +4 more
semanticscholar +1 more source
Karyotypes of six previously unstudied European mealybugs (Homoptera: Pseudococcidae)
Comparative Cytogenetics, 2010 Phenacoccus peruvianus Granada de Willink, 2007, Ph. prope avenae Borchsenius, 1949, Ph. hordei (Lindeman, 1886), Вalanococcus boratynskii Williams, 1962, Trionymus radicum (Newstead, 1895), Rhizoecus halophilus (Hardy, 1868) were studied ...
Ilya Gavrilov-Zimin, I Trapeznikova
doaj +1 more source
Chromosome number and individuality in the genus Crepis, [PDF]
P2 ...
Babcock, E. B. (Ernest Brown), 1877-1954 +1 more
core +2 more sources
C-banding, fluorescent staining and NOR location in holokinetic chromosomes of bugs of the Neotropical genus Antiteuchus (Heteroptera: Pentatomidae: Discocephalinae) [PDF]
, 2006 Different cytogenetic techniques including C-banding, base-specific fluorochromes and silver nitrate staining were used to compare the karyotypes of three species of bugs, representatives of the Neotropical genus Antiteuchus, namely A.
de Souza, Maria José, Lanzone, Cecilia
core +1 more source
Pesquisa Agropecuária Brasileira, 2007 O objetivo deste trabalho foi detectar diferenças entre duas espécies de pimenta-longa por meio de análise de cariótipos. Foram analisados cinco acessos de Piper hispidinervum (Piperaceae) C. DC. e Piper aduncum L.
Juliane Dornellas Nunes +3 more
doaj +1 more source
Chromosome Segregation Is Biased by Kinetochore Size [PDF]
, 2018 Chromosome missegregation during mitosis or meiosis is a hallmark of cancer and the main cause of prenatal death in humans. The gain or loss of specific chromosomes is thought to be random, with cell viability being essentially determined by selection ...
Aguiar, P +8 more
core +2 more sources
Autophagy gene haploinsufficiency drives chromosome instability, increases migration, and promotes early ovarian tumors. [PDF]
, 2020 Autophagy, particularly with BECN1, has paradoxically been highlighted as tumor promoting in Ras-driven cancers, but potentially tumor suppressing in breast and ovarian cancers.
Axelrod, Joshua +14 more
core +1 more source