Results 41 to 50 of about 10,937,438 (374)

Cladogenetic and Anagenetic Models of Chromosome Number Evolution: a Bayesian Model Averaging Approach

open access: yesbioRxiv, 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

Multicolour interphase cytogenetics: 24 chromosome probes, 6 colours, 4 layers [PDF]

open access: yes, 2011
From the late 1980s onwards, the use of DNA probes to visualise sequences on individual chromosomes (fluorescent in-situ hybridisation - FISH) revolutionised the study of cytogenetics.
A.R. Thornhill   +61 more
core   +1 more source

Number of nucleoli in diploids and polyploids of the genus Achillea L.

open access: yesActa Societatis Botanicorum Poloniae, 2014
Nucleoli were counted in 9228 interphase nuclei of the apical root meristem of 40 Achillea L. taxa (di-, tetra-. hexa- and octoploids). It was established that the distribution of nucleoli number in an interphase nucleus can be used as a rough practical ...
Janina Dąbrowska
doaj   +1 more source

Karyotypic Characteristics and Genetic Relationships of Apricot Accessions from Different Ecological Groups

open access: yesJournal of the American Society for Horticultural Science, 2020
The present study aims to reveal the karyotypic characteristics and genetic relationships of apricot (Prunus armeniaca L.) accessions from different ecological groups.
Wenwen Li   +7 more
doaj   +1 more source

Detection of chromosome aberrations in the human interphase nucleus by visualization of specific target DNAs with radioactive and non-radioactive in situ hybridization techniques: diagnosis of trisomy 18 with probe L1.84 [PDF]

open access: yes, 1986
The localization of chromosome 18 in human interphase nuclei is demonstrated by use of radioactive and nonradioactive in situ hybridization techniques with a DNA clone designated L1.84.
A. Brückner   +33 more
core   +1 more source

CHROMOSOME SET AND SOME PROBLEMS OF CANIS AUREUS IN CAUCASICA

open access: yesЮг России: экология, развитие, 2014
For the first time in the present resort chromosome set and some problems of Canis aureus ecology is described taking into account the structure of hail high altitude zone of mountain ecosystem.
R. I. Dzuev   +2 more
doaj   +1 more source

Karyological and morphological variation within Petrosimonia brachiata Bunge in Bulgaria [PDF]

open access: yesBotanica Serbica, 2019
We studied karyological and morphological variability of the only representative of the genus Petrosimonia (Amaranthaceae) in Bulgaria and evaluated the current state of its populations in the country.
Neli Grozeva   +2 more
doaj   +1 more source

A family case of fertile human 45,X,psu dic(15;Y) males [PDF]

open access: yes, 2006
We report on a familial case including four male probands from three generations with a 45,X,psu dic(15;Y)(p11.2;q12) karyotype. 45,X is usually associated with a female phenotype and only rarely with maleness, due to translocation of small Y chromosomal
Andersson M   +29 more
core   +1 more source

Evolutionary implications of heterochromatin and rDNA in chromosome number and genome size changes during dysploidy: A case study in Reichardia genus

open access: yesPLoS ONE, 2017
In this study we showed that constitutive heterochromatin, GC-rich DNA and rDNA are implicated in chromosomal rearrangements during the basic chromosome number changing (dysploidy) in Reichardia genus.
S. Siljak-Yakovlev   +5 more
semanticscholar   +1 more source

Chromosome positioning is largely unaffected in lymphoblastoid cell lines containing emerin or A-type lamin mutations [PDF]

open access: yes, 2005
Gene-poor human chromosomes are reproducibly found at the nuclear periphery in proliferating cells. There are a number of inner nuclear envelope proteins that may have roles in chromosome location and anchorage, e.g. emerin and A-type lamins.
Bridger, JM   +3 more
core   +1 more source

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