Results 1 to 10 of about 5,667,002 (192)

Meiotic behavior of small chromosomes in maize [PDF]

open access: yesFrontiers in Plant Science, 2013
The typical behavior of chromosomes in meiosis is that homologous pairs synapse, recombine and then separate at anaphase I. At anaphase II, sister chromatids separate.
James A. Birchler, Fangpu eHan
doaj   +5 more sources

Mysterious meiotic behavior of autopolyploid and allopolyploid maize [PDF]

open access: yesComparative Cytogenetics, 2018
This study was aimed to investigate the stability of chromosomes during meiosis in autopolyploid and allopolyploid maize, as well as to determine an association of chromosomes between maize (Zea mays ssp. mays Linnaeus, 1753) and Z.
M. Iqbal   +8 more
semanticscholar   +5 more sources

The Impact of Open Pollination on the Structural Evolutionary Dynamics, Meiotic Behavior, and Fertility of Resynthesized Allotetraploid Brassica napus L. [PDF]

open access: yesG3: Genes, Genomes, Genetics, 2017
Allopolyploidy, which results from the merger and duplication of two divergent genomes, has played a major role in the evolution and diversification of flowering plants.
Mathieu Rousseau-Gueutin   +15 more
doaj   +3 more sources

Meiotic behavior and H3K4m distribution in B chromosomes of Characidium gomesi (Characiformes, Crenuchidae) [PDF]

open access: yesComp Cytogenet, 2016
Characidium gomesi Travasso, 1956 specimens from the Pardo River have up to four heterochromatic supernumerary chromosomes, derived from the sex chromosomes. To access the meiotic behavior and distribution of an active chromatin marker, males and females
É. A. Serrano   +4 more
semanticscholar   +2 more sources

Meiotic behavior of Brachiaria decumbens hybrids.

open access: yesGenetics and Molecular Research, 2015
Brachiaria decumbens is a forage grass of inestimable value for livestock in Brazil due to its production of good quality forage even when planted on acid and poor soils, although it is susceptible to pasture spittlebugs. Only one cultivar, cv. Basilisk, has been used as the pollen donor in crosses with Brachiaria ruziziensis since 1988 at Embrapa Gado
V. F. Souza   +5 more
semanticscholar   +3 more sources

Complex chromosomal rearrangements: origin and meiotic behavior. [PDF]

open access: yesHuman Reproduction Update, 2011
Complex chromosomal rearrangements (CCRs) describe structural rearrangements, essentially translocations, involving at least three breakpoints on two or more chromosomes. Although they are rare in humans, their clinical identification is important since CCR carriers can display various phenotypes which include phenotypically normal subjects, infertile ...
F. Pellestor   +6 more
semanticscholar   +3 more sources

Meiotic Behavior of 18 Species From Eight Families of Terrestrial Heteroptera [PDF]

open access: yesJ Insect Sci, 2014
. Insects of the suborder Heteroptera are known for their odor, for being pests, or for being disease carriers. To gain better insight into the cytogenetic characteristics of heteropterans, 18 species of terrestrial Heteroptera belonging to eight ...
H. V. Souza   +9 more
semanticscholar   +2 more sources

Using wheat-rye 1BL.1RS translocations to disclose the effects of subtelomeric tandem repeats on meiotic behavior of homologues [PDF]

open access: yesBMC Plant Biology
Background The subtelomeric region of the 1RS arm of rye (Secale cereale L.) contains several kinds of tandem repeats with high copy number and they can affect meiotic recognition and pairing of this chromosome arm.
Yang Zou   +6 more
doaj   +2 more sources

Analysis of self-fertilization and meiotic behavior of eleven Brazilian triticale cultivars at two sowing dates [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2011
Eleven Brazilian hexaploid triticale cultivars (2n = 6x = 42), from three breeding programs, were evaluated for theirability of self-fertilization in 2006 and for meiotic behavior, meiotic index and pollen viability at two sowing dates in 2007 ...
Divanilde Guerra   +2 more
doaj   +2 more sources

Cytoembryological evaluation, meiotic behavior and pollen viability of Paspalum notatum tetraploidized plants [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2016
This study evaluated the mode of reproduction, the meiotic behavior and the pollen viability of three tetraploid plants (2n=4x=40) originated from somatic chromosome duplication of Paspalum notatum plants. The plant WKS 3 changed the mode of reproduction
Karine Cristina Krycki   +2 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy