Results 41 to 50 of about 499,830 (212)

A new continuous cell line from the mosquito Psorophora confinnis (Diptera: Culicidae) and its susceptibility to infections with some arboviruses

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
A new cell line, PC-0199-BR, was established from embryonated eggs of the mosquito Psorophora confinnis. To date (September 2000) it has had 62 continuous passages.
Felio J Bello   +6 more
doaj   +1 more source

Evolutionary strata on the X chromosomes of the dioecious plant Silene latifolia: Evidence from new sex-linked genes [PDF]

open access: yes, 2007
Despite its recent evolutionary origin, the sex chromosome system of the plant Silene latifolia shows signs of progressive suppression of recombination having created evolutionary strata of different X-Y divergence on sex chromosomes. However, even after
Bergero, Roberta   +3 more
core   +1 more source

SCREENING FOR BIOMORPHOLOGICAL AND CYTOGENETIC FEATURES OF POLEMONIUM CAERULEUM L. AFTER COLCHICINE APPLICATION

open access: yesSiberian Journal of Life Sciences and Agriculture, 2023
Background. Currently, it is quite relevant in breeding to create varieties with high yields of raw materials and the content of biologically active compounds. This work aim is to identify promising forms of P. caeruleum L. is for further inclusion in
Firdaus M. Khazieva   +4 more
doaj   +1 more source

Holocentric Chromosomes of Luzula elegans Are Characterized by a Longitudinal Centromere Groove, Chromosome Bending, and a Terminal Nucleolus Organizer Region [PDF]

open access: yes, 2011
The structure of holocentric chromosomes was analyzed in mitotic cells of Luzula elegans. Light and scanning electron microscopy observations provided evidence for the existence of a longitudinal groove along each sister chromatid.
Houben, A.   +15 more
core   +1 more source

Cytogenetic abnormalities in patients with hematological malignancies in Lahore city, Pakistan

open access: yesBrazilian Journal of Biology, 2021
Hematological and hematopoietic cells malignancies of the genes and hematopoietic cells are associated with the genetic mutation, often at the chromosomal level.
U. A. Awan   +10 more
doaj   +1 more source

Painting of human chromosomes with probes generated from hybrid cell lines by PCR with Alu and L1 primers [PDF]

open access: yes, 1990
Specific amplification of human sequences of up to several kb length has recently been accomplished in man-hamster and man-mouse somatic hybrid cell DNA by IRS-PCR (interspersed repetitive sequence — polymerase chain reaction).
Riethman, Harold C.   +2 more
core   +1 more source

Karyotyping human chromosomes by optical and X-ray ptychography methods [PDF]

open access: yes, 2014
Sorting and identifying chromosomes, a process known as karyotyping, is widely used to detect changes in chromosome shapes and gene positions. In a karyotype the chromosomes are identified by their size and therefore this process can be performed by ...
Xiong, G   +8 more
core  

Specific nuclear envelope transmembrane proteins can promote the location of chromosomes to and from the nuclear periphery [PDF]

open access: yes, 2013
BACKGROUND: Different cell types have distinctive patterns of chromosome positioning in the nucleus. Although ectopic affinity-tethering of specific loci can be used to relocate chromosomes to the nuclear periphery, endogenous nuclear envelope proteins ...
Vassiliki Lazou   +24 more
core   +1 more source

Size of the Whole versus Number of Parts in Genomes

open access: yesEntropy, 2011
It is known that chromosome number tends to decrease as genome size increases in angiosperm plants. Here the relationship between number of parts (the chromosomes) and size of the whole (the genome) is studied for other groups of organisms from different
Núria Forns   +3 more
doaj   +1 more source

Fertility recovery of anther-derived haploid plants in Cape gooseberry (Physalis peruviana L.)

open access: yesAgronomía Colombiana, 2018
The cape gooseberry (Physalis peruviana L.) is one of the most important Colombian exotic fruits. Chromosome doubling of anther-derived plants is a key factor in the application of double haploid technology for the genetic improvement of crops.
Francy Garcia-Arias   +2 more
doaj   +1 more source

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