Results 31 to 40 of about 11,109,446 (394)

Colchicine-induced autotetraploidy and altered plant cytogenetic and morpho-physiological traits in Catharanthus roseus (L.) G. Don

open access: yesAdvances in Horticultural Science, 2018
Artificially induced polyploidy is often used to alter plant growth pattern and genetic makeup of certain plant species. This experiment was conducted to induce autotetraploidy in Catharanthus roseus (‘Alba’) which contains diploid chromosomes ...
Hamid Hosseini   +3 more
doaj   +1 more source

The elusive evidence for chromothripsis. [PDF]

open access: yes, 2014
The chromothripsis hypothesis suggests an extraordinary one-step catastrophic genomic event allowing a chromosome to 'shatter into many pieces' and reassemble into a functioning chromosome.
Bafna, Vineet   +2 more
core   +1 more source

Chromosome Number Variation in Iranian Populations of Acorus calamus [PDF]

open access: yesJournal of Genetic Resources, 2019
Different ploidy levels, diploid (2n=2x=24) to hexaploid (2n=6x=72) have been reported for Acorus calamus, a perennial medicinal plant. According to available information, there is a significant relationship between the ploidy level and essential oil ...
Abbas Gholipour
doaj   +1 more source

Securin Is Not Required for Chromosomal Stability in Human Cells [PDF]

open access: yes, 2005
Abnormalities of chromosome number are frequently observed in cancers. The mechanisms regulating chromosome segregation in human cells are therefore of great interest.
Azofeifa   +32 more
core   +4 more sources

Investigation of marmoset hybrids (Cebuella pygmaea x Callithrix jacchus) and related Callitrichinae (Platyrrhini) by cross-species chromosome painting and comparative genomic hybridization [PDF]

open access: yes, 2005
We report on the cytogenetics of twin offspring from an interspecies cross in marmosets (Callitrichinae, Platyrrhini), resulting from a pairing between a female Common marmoset (Callithrix jacchus, 2n = 46) and a male Pygmy marmoset (Cebuella pygmaea, 2n
Canavez FC   +15 more
core   +1 more source

Chromosome Number in the Sequoias [PDF]

open access: yesBotanical Gazette, 1920
Volume: 69 ; Start Page: 348 ; End Page ...
Goodspeed, T. H., Crane, M. P.
openaire   +2 more sources

Induction of chromosome shattering by ultraviolet light and caffeine: The influence of different distributions of photolesions [PDF]

open access: yes, 1986
Cells of synchonized and of asynchronously growing cultures of a V79 Chinese hamster line were microirradiated with a low poweer laser-UV-microbeam of wavelength 257 nm.
Barranco   +42 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

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

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

Home - About - Disclaimer - Privacy