scholarly journals Cross-compatibility and F1 Reproductive Potential of Cultivated Cowpea Varieties and a Wild Relative (Subsp. unguiculata var. spontenea)

2013 ◽  
Vol 3 (5) ◽  
pp. 391-395 ◽  
Author(s):  
D. J. Nwosu ◽  
◽  
S. Aladele ◽  
J. O. Adeosun ◽  
C Nwadike ◽  
...  
Keyword(s):  
Reproductive Potential ◽  
Wild Relative ◽  
Cross Compatibility ◽  
Cowpea Varieties

scholarly journals Cross-Compatibility Between Some Cultivated Cowpea Varieties and a Wild Relative (Subsp. Dekindtiana Var Pubescens)

2012 ◽  
Vol 5 (1) ◽  
pp. 195-200 ◽  
Author(s):  
D. J. Nwosu ◽  
E. N. Awa
Keyword(s):  
Gene Pool ◽  
Reproductive Potential ◽  
Wild Relative ◽  
F1 Hybrid ◽  
Hybrid Plants ◽  
Cross Compatibility ◽  
Cowpea Varieties ◽  
Number Of Leaves ◽  
Viable Seeds ◽  
Cultivated Populations

Four cultivated cowpea (Achi shuru, Ife Brown, Kanannado and Zebra bean) were crossed to their wild relative subsp. dekindtiana var. pubescens to ascertain their cross compatibility, reproductive potential and possible heterosis in the F1 generations. Results show that the cultivated varieties hybridized relatively well with their wild relative with pod set of 40.8% to 46.7%. F1 hybrid plants also showed high heterosis in plant height and number of leaves and produced viable seeds. These results are indications of a good reproductive potential of the hybrids thus making the wild, good candidate for transfer of important gene pool into the cultivated populations.© 2013 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi: http://dx.doi.org/10.3329/jsr.v5i1.10761        J. Sci. Res. 5 (1), 195-200 (2013)

scholarly journals Cross-compatibility of cultivated cowpea varieties and their wild relatives: Implications for crop improvement

2021 ◽  
Vol 19 (1) ◽  
pp. 110-119
Author(s):  
D.J. Nwosu ◽  
C. Nwadike
Keyword(s):  
Crop Improvement ◽  
Reproductive Potential ◽  
Wild Relatives ◽  
F1 Hybrid ◽  
Hybrid Plants ◽  
Cross Compatibility ◽  
Cowpea Varieties ◽  
In The Wild ◽  
Viable Seeds ◽  
Cultivated Populations

Hybridization programmes that potentially exploit the variability existing in the wild germplasm of Vigna unguiculata L. Walpers could be of great potential for the future of plant breeding. Bearing this in mind, four cultivated cowpea varieties (Achi shuru, Ife Brown, Kanannado and Zebra bean) were crossed to two of their wild relatives: subsp. dekindtiana var. pubescens and subsp. unguiculata var. spontanea to ascertain the cross compatibility, reproductive potential and possible heterosis in the F1 generations. Results showed that the cultivated varieties hybridized relatively well with their wild relatives showing pod set range of 42.9% to 52.3% in crosses with subsp. dekindtiana var. pubescens and 40.0% to 52.0% in crosses with subsp. unguiculata var. spontanea. The F1 hybrid plants showed high heterosis in plant height, number of leaves per plant, number of flowers per plant, number of pods per plant and percentage pod set. They also produced viable seeds for F2 generations. These results are indications of a good reproductive potential of the hybrids thus making the wild relatives, good sources of important gene pool for the improvement of the cultivated populations.

scholarly journals Cross compatibility between chickpea and its wild relative,Cicer echinospermum Davis

Euphytica ◽  
1995 ◽  
Vol 83 (3) ◽  
pp. 241-245 ◽  
Author(s):  
R. P. S. Pundir ◽  
M. H. Mengesha
Keyword(s):  
Wild Relative ◽  
Cicer Echinospermum ◽  
Cross Compatibility

On the possibility of targeted prophylaxis of calcitriol-associated pregnancy complications at the preclinical stage

2020 ◽  
pp. 43-50
Author(s):  
N.V. Didenkul ◽  
Keyword(s):  
Vitamin D ◽  
Pregnancy Complications ◽  
Comparison Group ◽  
Reproductive Potential ◽  
Perinatal Outcomes ◽  
Fetal Distress ◽  
Optimal Level ◽  
Initial Study ◽  
Management Plan ◽  
Placental Dysfunction

According to recent studies, in the vitamin D deficiency state (VDD), pregnancy can be complicated and the optimal level of VD in the blood is one of the conditions for the realization of reproductive potential. The objective: the possibility to preventing calcitriol-associated pregnancy complications by the correcting VD deficiency at the preconception period. Materials and methods. 57 women with VDD were examined. A history of all women had a pregnancy complicated by placental dysfunction (PD); 27 of them were observed from the preconception period (main group – IA) and 30 – from the 1st trimester of pregnancy (comparison group – IB). The VD status by the blood level of the 25-hydroxyvitamin D by ELISA was determined. Women of both groups, in addition to the vitamin-mineral complex (VMC) were prescribed supplementation colecalciferol at a dose of 4.000 IU per day. Pregnant women of both groups received VMCs up to 16 weeks. After optimizing the level (3–4 months), women continued to take VD at a dose of 2.000 IU per day throughout pregnancy. Results. At the initial study, the VD level was 15.72±2.59 ng/ml in ІА and 16.1±1.99 ng/ml in ІВ group (U=883; p>0.05); after treatment increased to 38.31±3.29 ng/ml and 36.13±2.99 ng/ml (U=900; p>0.05). In group IA, the course of pregnancy was characterized by a lower frequency of complications: PD was diagnosed in 22.2% in group IA and 50% in group IB (F=0.0001; p<0.01); fetal distress in 3.7% and 10% (F=0.16; p<0.05): signs of amnionitis – in 18.5% and 33.3% (F=0.035; p<0.05); placental hypertrophy or hypotrophy – in 7.4% and 36.7% (F=0.00001; p<0.01), preeclampsia in 3.7% and 6.7% of women (F=0,54; p<0.05). The frequency of cesarean section in the comparison group was significantly higher (40% VS 25.9%, F=0.034; p<0.05). Conclusions. During pregnancy, which occurred in conditions of VDD, the frequency of some pregnancy complications, including preeclampsia, the threat of miscarriage, placental dysfunction was in 2–4 times higher than in women with optimized VD status. One of the directions of the individual management plan for women with a negative obstetric history can be the determination of the level of VD in the blood and correction of the VDD at the preconception period. This approach is a pathogenetically substantiated and promising direction for the prevention of some pregnancy complications and improvement of perinatal outcomes. Keywords: pregnancy, deficiency vitamin D, placental dysfunction, preconception period.

Features of the ovarian reserve of women of reproductive age suffering from autoimmune diseases

GYNECOLOGY ◽  
2020 ◽  
Vol 22 (5) ◽  
pp. 27-30
Author(s):  
Elena N. Andreeva ◽  
Olga R. Grigoryan ◽  
Yulia S. Absatarova ◽  
Irina S. Yarovaya ◽  
Robert K. Mikheev
Keyword(s):  
Type 1 Diabetes ◽  
Thyroid Gland ◽  
Autoimmune Diseases ◽  
Ovarian Reserve ◽  
Reproductive Potential ◽  
Reproductive Age ◽  
Control Group ◽  
Antithyroid Antibodies ◽  
Healthy Women

The reproductive potential of a woman depends on indicators of the ovarian reserve, such as the anti-Muller hormone (AMH) and the number of antral follicles (NAF). Autoimmune diseases have a significant effect on fertility and contribute to the development of premature ovarian failure. Aim.To evaluate the parameters of the ovarian reserve in patients with type 1 diabetes mellitus, carriers of antibodies to the thyroid gland in a state of euthyroidism and compare them with similar parameters in healthy women. Materials and methods.In the first block of the study, the level of AMH, follicle-stimulating hormone, luteinizing hormone, NAF was studied among 224 women with diabetes and 230 healthy women in the control group. In block II, the level of the above hormonal indices was studied in 35 carriers of antithyroid antibodies in the state of euthyroidism and 35 healthy women. Results.In patients with type 1 diabetes, the level of AMH, NAF was statistically significantly lower when compared with the control group. Among carriers of antithyroid antibodies and healthy women, no difference in AMH and NAF was found. Conclusion.The autoimmune processes accompanying diabetes are more influenced by the ovarian reserve indices than autoimmune aggression to the tissues of the thyroid gland.

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