Results 101 to 110 of about 35,869 (203)
The aim of this study was to look in depth at the relationship between meiotic anomalies and male infertility, such as the determination of the chromosomes involved or the correlation with patient features.
Zaida Sarrate +2 more
doaj +1 more source
The Development and Meiotic Behavior of Asymmetrical Isochromosomes in Wheat [PDF]
To determine which segments of a chromosome arm are responsible for the initiation of chiasmate pairing in meiosis, a series of novel isochromosomes was developed in hexaploid wheat (Triticum aestivum L.). These isochromosomes are deficient for different terminal segments in the two arms.
openaire +2 more sources
Spatially explicit non-Mendelian diploid model
We introduce a spatially explicit model for the competition between type $a$ and type $b$ alleles. Each vertex of the $d$-dimensional integer lattice is occupied by a diploid individual, which is in one of three possible states or genotypes: $aa$, $ab ...
Lanchier, N., Neuhauser, C.
core +1 more source
Meiotic behavior as a selection tool in silage corn breeding
In breeding programs, commercial hybrids are frequently used as a source of inbred lines to obtain new hybrids. Considering that maize production is dependent on viable gametes, the selection of populations to obtain inbred lines with high meiotic stability could contribute to the formation of new silage corn hybrids adapted to specific region.
V F, Souza +4 more
openaire +2 more sources
Chromosome numbers, meiotic behavior and pollen fertility in a collection of Paspalum nicorae Parodi accessions [PDF]
Chromosome number, meiotic behavior and pollen viability were evaluated in a collection of 53 Paspalumnicorae Parodi accessions, which are part of a breeding project of the species.
Camila Aparecida de Oliveira dos Reis +2 more
doaj
Functional Analysis of MicroRNA Pathway Genes in the Somatic Gonad and Germ Cells During Ovulation in \u3cem\u3eC. Elegans\u3c/em\u3e [PDF]
MicroRNAs (miRNAs) are post-transcriptional regulators of gene expression that play critical roles in animal development and physiology, though functions for most miRNAs remain unknown.
Abbott, Allison L. +3 more
core +1 more source
Reproductive studies were carried out on Brazilian accessions of ipecac, Cephaelis ipecacuanha. Meiotic behavior was studied using the squashing technique.
M. M. Souza +3 more
doaj +1 more source
MEIOTIC CHROMOSOME BEHAVIOR OF AN INVERTED INSERTIONAL TRANSLOCATION IN NEUROSPORA
ABSTRACT Cytological study of meiotic chromosomes heterozygous for the T(I⇉II)39311 translocation confirm genetic evidence (Perkins 1972) that a section of linkage group I including the mating type locus has been inserted into linkage group II.
openaire +2 more sources
Citogenética de especies de Vasconcellea (Caricaceae)
<span style="";font-size: 10pt; line-height: 115%; font-family: 'Verdana','sans-serif'; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: ES-CO; mso-fareast-language: ES-CO; mso-bidi-language: AR ...
Caetano Creucí María +4 more
doaj

