The role of homoeologous group 1 chromosomes in the control of rRNA genes in wheat

1974 ◽  
Vol 12 (4) ◽  
pp. 271-279 ◽  
Author(s):  
R. B. Flavell ◽  
D. B. Smith
Keyword(s):  
Rrna Genes ◽  
Homoeologous Group ◽  
Group 1 Chromosomes ◽  
Group 1

Control of lectins in Triticum aestivum and Aegilops umbellulata by homoeologous group 1 chromosomes

1983 ◽  
Vol 67 (1) ◽  
pp. 53-58 ◽  
Author(s):  
H. M. Stinissen ◽  
W. J. Peumans ◽  
C. N. Law ◽  
P. I. Payne
Keyword(s):  
Triticum Aestivum ◽  
Homoeologous Group ◽  
Aegilops Umbellulata ◽  
Group 1 Chromosomes ◽  
Group 1

Molecular genetic identification of Avena chromosomes related to the group 1 chromosomes of the Triticeae

Genome ◽  
1995 ◽  
Vol 38 (1) ◽  
pp. 185-189 ◽  
Author(s):  
E. N. Jellen ◽  
R. L. Phillips ◽  
W. L. Rooney ◽  
H. W. Rines
Keyword(s):  
Molecular Genetic ◽  
Genetic Identification ◽  
Target Sequence ◽  
Homoeologous Group ◽  
Chinese Spring Wheat ◽  
Complete Series ◽  
Group 1 Chromosomes ◽  
Molecular Genetic Identification ◽  
Homoeologous Chromosomes ◽  
Group 1

A collection of 19 wheat (Triticum aestivum) probes, detecting sequences in the seven homoeologous groups of chromosomes, were hybridized to DNA from the 'Kanota' series of oat monosomic lines (Avena byzantina) to investigate their use for identifying groups of homoeologous oat chromosomes. Three probes from homoeologous group 1 of wheat, psr161, psr162, and psr121, mapped among the set of oat chromosomes 1C, 14, and 17. One homoeologous group 6 probe, psr167, mapped to oat chromosomes 1C and 17. Two oat probes that had previously been shown to map to oat chromosomes 1C, 14, and 17 were then hybridized to DNA from the 'Chinese Spring' wheat ditelosomics. They localized to homoeologous group 1 wheat chromosomes, one to the short arm and one to the long arm. These results reveal that in hexaploid oat there is a group of three chromosomes that correspond at least in part to homoeologous group 1 of wheat. The remaining wheat probes identifying other wheat homoeologous sets did not detect a complete series of homoeologous chromosomes in oat. This was presumably due to the incomplete status of the 'Kanota' monosomic series, chromosomal rearrangement in Avena, weak hybridization signals owing to low probe-target sequence homology, and (or) detection of only two hybridization bands by the wheat probe.Key words: oat, RFLPs, aneuploids, wheat, homoeologous groups.

Homoeologous group 1 chromosomes of Agropyron restore nucleus-cytoplasmic compatibility in alloplasmic common wheat with Agropyron cytoplasms

1994 ◽  
Vol 69 (1) ◽  
pp. 41-51
Author(s):  
Tohru SUZUKI ◽  
Chiharu NAKAMURA ◽  
Naoki MORI ◽  
Yoko IWASA ◽  
Chukichi KANEDA
Keyword(s):  
Common Wheat ◽  
Homoeologous Group ◽  
Group 1 Chromosomes ◽  
Group 1

scholarly journals Homoeologous group 1 chromosomes of Agropyron restore nucleus-cytoplasmic compatibility in alloplasmic common wheat with Agropyron cytoplasms.

1994 ◽  
Vol 69 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Tohru SUZUKI ◽  
Chiharu NAKAMURA ◽  
Naoki MORI ◽  
Yoko IWASA ◽  
Chukichi KANEDA
Keyword(s):  
Common Wheat ◽  
Homoeologous Group ◽  
Group 1 Chromosomes ◽  
Group 1

Linkage mapping of ‘25-kDa globulin’ genes on homoeologous group-1 chromosomes of bread and durum wheat

1996 ◽  
Vol 93-93 (5-6) ◽  
pp. 780-787 ◽  
Author(s):  
M. T. Nieto-Taladriz ◽  
M. Pernas ◽  
G. Salcedo ◽  
J. M. Carrillo
Keyword(s):  
Durum Wheat ◽  
Linkage Mapping ◽  
Homoeologous Group ◽  
Group 1 Chromosomes ◽  
Group 1

scholarly journals CONTROL OF ENDOSPERM PROTEINS IN TRITICUM AESTIVUM (var. CHINESE SPRING) AND AEGILOPS UMBELLULATA BY HOMOEOLOGOUS GROUP 1 CHROMOSOMES

Genetics ◽  
1979 ◽  
Vol 93 (1) ◽  
pp. 189-200
Author(s):  
John W S Brown ◽  
Roger J Kemble ◽  
Colin N Law ◽  
Richard B Flavell
Keyword(s):  
Chinese Spring ◽  
Polyacrylamide Gel Electrophoresis ◽  
Homoeologous Group ◽  
Protein Subunit ◽  
Protein Subunits ◽  
Endosperm Proteins ◽  
Aegilops Umbellulata ◽  
Chinese Spring Wheat ◽  
Group 1 Chromosomes ◽  
Group 1

ABSTRACT The genetic control of major wheat endosperm proteins by homoeologous group 1 chromosomes has been studied by two-dimensional polyacrylamide gel electrophoresis. The control of at least 15 distinct protein subunits or groups of protein subunits has been allocated to chromosomes 1A, 1B and 1D of Chinese Spring wheat from the analysis of grains of aneuploid genotypes. In addition, six protein subunits have been shown to be controlled by chromosome 1Cu of the related species, Aegilops umbellulata, from studies of wheat lines carrying disomic substitutions of 1Cu chromosomes. On the basis of protein subunit patterns, chromosome 1Cu is more closely related to chromosome ID of wheat than to chromosomes 1A or 1B.

The role of orexin A in pathophysiological mechanisms of sleep disorder in postmenopausal women

GYNECOLOGY ◽  
2020 ◽  
Vol 22 (1) ◽  
pp. 50-54
Author(s):  
Zukhra Kh. Ebzieva ◽  
Svetlana V. Yureneva ◽  
Tatiana Yu. Ivanets
Keyword(s):  
Hormone Therapy ◽  
Sleep Disorder ◽  
Postmenopausal Women ◽  
Menopausal Hormone Therapy ◽  
Reproductive Age ◽  
Vasomotor Symptoms ◽  
Women Of Reproductive Age ◽  
Orexin A ◽  
Group 1

Aim. To conduct a comparative analysis of serum orexin A levels in women of different age periods with and without sleep disorder and vasomotor symptoms. To evaluate the dynamics of orexin A levels under menopausal hormone therapy. Materials and methods. The study included 50 postmenopausal women and 30 women of reproductive age with a regular menstrual cycle. Using block randomization, patients are divided into 3 groups: group 1 (main group), n=25, -STRAW+ 10 (+1b and +1c), patients with sleep disorder and vasomotor symptoms; group 2 (comparison group), n=25, STRAW+ 10 (+1b and +1c), patients with vasomotor symptoms without sleep disorder; group 3 (control group), n=30, STRAW+ 10 (-4), women of reproductive age without sleep disorder. Group 1 patients were given menopausal hormone therapy. A comparative analysis was carried out using the questionnaire for assessing menopausal symptoms severity by the Greene Scale (the Greene Climacteric Scale) and Rating Scale for subjective sleep characteristics. After 12 weeks of treatment, a control examination was performed. Results. In group 1 women, the serum orexin A levels were significantly higher compared to the women without the symptoms. The link between the orexin A levels and menopause syndrome severity was established. A significant decrease in the menopausal symptoms severity after 12 weeks of menopausal hormone therapy was shown. It was accompanied by a 1,3-fold decrease in orexin A levels. Conclusions. The obtained data indicate the possible role of orexin A and the orexin neuropeptide system in the pathogenesis of sleep disorder and vasomotor symptoms in postmenopausal women.

scholarly journals The role of inhibition of osteocyte apoptosis in mediating orthodontic tooth movement and periodontal remodeling: a pilot study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Michele Kaplan ◽  
Zana Kalajzic ◽  
Thomas Choi ◽  
Imad Maleeh ◽  
Christopher L. Ricupero ◽  
...  
Keyword(s):  
Bone Density ◽  
Alveolar Bone ◽  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Tartrate Resistant Acid Phosphatase ◽  
Osteocyte Apoptosis ◽  
Saline Administration ◽  
Group 2 ◽  
Group 1

Abstract Background Orthodontic tooth movement (OTM) has been shown to induce osteocyte apoptosis in alveolar bone shortly after force application. However, how osteocyte apoptosis affects orthodontic tooth movement is unknown. The goal of this study was to assess the effect of inhibition of osteocyte apoptosis on osteoclastogenesis, changes in the alveolar bone density, and the magnitude of OTM using a bisphosphonate analog (IG9402), a drug that affects osteocyte and osteoblast apoptosis but does not affect osteoclasts. Material and methods Two sets of experiments were performed. Experiment 1 was used to specifically evaluate the effect of IG9402 on osteocyte apoptosis in the alveolar bone during 24 h of OTM. For this experiment, twelve mice were divided into two groups: group 1, saline administration + OTM24-h (n=6), and group 2, IG9402 administration + OTM24-h (n=6). The contralateral unloaded sides served as the control. The goal of experiment 2 was to evaluate the role of osteocyte apoptosis on OTM magnitude and osteoclastogenesis 10 days after OTM. Twenty mice were divided into 4 groups: group 1, saline administration without OTM (n=5); group 2, IG9402 administration without OTM (n=5); group 3, saline + OTM10-day (n=6); and group 4, IG9402 + OTM10-day (n=4). For both experiments, tooth movement was achieved using Ultra Light (25g) Sentalloy Closed Coil Springs attached between the first maxillary molar and the central incisor. Linear measurements of tooth movement and alveolar bone density (BVF) were assessed by MicroCT analysis. Cell death (or apoptosis) was assessed by terminal dUTP nick-end labeling (TUNEL) assay, while osteoclast and macrophage formation were assessed by tartrate-resistant acid phosphatase (TRAP) staining and F4/80+ immunostaining. Results We found that IG9402 significantly blocked osteocyte apoptosis in alveolar bone (AB) at 24 h of OTM. At 10 days, IG9402 prevented OTM-induced loss of alveolar bone density and changed the morphology and quality of osteoclasts and macrophages, but did not significantly affect the amount of tooth movement. Conclusion Our study demonstrates that osteocyte apoptosis may play a significant role in osteoclast and macrophage formation during OTM, but does not seem to play a role in the magnitude of orthodontic tooth movement.

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