Results 31 to 40 of about 6,538,014 (290)

Passiflora cristalina and Passiflora miniata: meiotic characterization of two wild species for use in breeding [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2017
Passiflora cristalina and Passiflora miniata are two new wild species found in the southern Amazon region. This study aimed to analyze the meiotic behavior of the two species, by meiotic analysis, meiotic index and pollen grain viability, using routine ...
Telma Nair Santana Pereira   +3 more
doaj   +1 more source

Chromosome number reports in five Onobrychis species (O. sect. Onobrychis, Fabaceae) in Iran [PDF]

open access: yesJournal of Cell and Molecular Research, 2011
In this study the original mitotic chromosome counts are presented for 5 Onobrychis species of O. sect. Onobrychis in Iran, 2n = 2x = 14 for O. persica, 2n = 4x = 28 for O. viciifolia, 2n = 4x = 28 for O. altissima, 2n = 2x = 14 for O.
Roya Karamian   +2 more
doaj   +1 more source

Meiotic behavior of a complex hexavalent in heterozygous mice for Robertsonian translocations: insights for synapsis dynamics

open access: yesChromosoma, 2019
Natural populations of the house mouse Mus musculus domesticus show great diversity in chromosomal number due to the presence of chromosomal rearrangements, mainly Robertsonian translocations.
Marta Ribagorda   +12 more
semanticscholar   +1 more source

Oligo-painting and GISH reveal meiotic chromosome biases and increased meiotic stability in synthetic allotetraploid Cucumis ×hytivus with dysploid parental karyotypes

open access: yesBMC Plant Biology, 2019
Background Meiosis of newly formed allopolyploids frequently encounter perturbations induced by the merging of divergent and hybridizable genomes. However, to date, the meiotic properties of allopolyploids with dysploid parental karyotypes have not been ...
Qinzheng Zhao   +9 more
doaj   +1 more source

Meiotic analysis of interspecific hybrids between Capsicum frutescens and Capsicum chinense [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2017
The aim of this study was to observe the genetic relationship between C. frutescens (UENF 1636) and C. chinense (UENF 1785) based on the meiotic behavior, on the meiotic index, and on pollen viability of their F1 hybrids. For meiotic analysis and meiotic
Nádia Fernandes Moreira   +2 more
doaj   +1 more source

MEIOTIC BEHAVIOR OF ASYMMETRIC DYADS IN THE MALE DROSOPHILA [PDF]

open access: yesGenetics, 1973
ABSTRACT Crossing over in the interstitial region of the heterozygous V4 translocation in Drosophila melanogaster generates asymmetric dyads each consisting of a shorter and a longer chromatid It was shown previously that in the female the shorter is recovered preferentially (ZIMMERING 1955); the present work suggests that the same ...
S, Zimmering, E B, Bendbow
openaire   +2 more sources

Variable Patterning of Chromatin Remodeling, Telomere Positioning, Synapsis, and Chiasma Formation of Individual Rye Chromosomes in Meiosis of Wheat-Rye Additions

open access: yesFrontiers in Plant Science, 2018
Meiosis, the type of cell division that halves the chromosome number, shows a considerable degree of diversity among species. Unraveling molecular mechanisms of the meiotic machinery has been mainly based on meiotic mutants, where the effects of a change
Tomás Naranjo
doaj   +1 more source

The meiotic behavior of an inversion in Caenorhabditis elegans. [PDF]

open access: yesGenetics, 1992
Abstract The rearrangement hIn1(I) was isolated as a crossover suppressor for the right end of linkage group (LG) I. By inducing genetic markers on this crossover suppressor and establishing the gene order in the homozygote, hIn1(I) was demonstrated to be the first genetically proven inversion in Caenorhabditis elegans.
M C, Zetka, A M, Rose
openaire   +2 more sources

Somaclonal variation in Asparagus officinalis plants regenerated by organogenesis from long-term callus cultures

open access: yesGenetics and Molecular Biology, 2005
Somaclonal variation in plants regenerated by organogenesis from long-term cultured calluses of two diploid staminate genotypes of Asparagus officinalis cv.
Ana Clara Pontaroli, Elsa Lucila Camadro
doaj   +1 more source

Analysis of Meiotic Behavior in Eremurus himalaicus Baker (Liliaceae): A Rare Endemic Perennial from Kinnaur, Himachal Pradesh, India

open access: yes, 2016
Detailed meiotic studies have been carried out in 11 accessions of Eremurus himalaicus Baker belonging to family Liliaceae̶an endemic medicinal plant of the Northwestern Himalayas. E.
K. Kumari, M. I. Saggoo
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy