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Development of a Method for Detecting Embryonic Sex-Linked Lethals of the Silkworm Bombyx Moril

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Development of a Method for Detecting Embryonic Sex-Linked Lethals of the Silkworm Bombyx Moril


Svetlana Semyonovna Lejenko | Baxtiyar Ubaydullayevich Nasirillayev | Murodxoja Alisherogli Abdiqodirov



Svetlana Semyonovna Lejenko | Baxtiyar Ubaydullayevich Nasirillayev | Murodxoja Alisherogli Abdiqodirov "Development of a Method for Detecting Embryonic Sex-Linked Lethals of the Silkworm Bombyx Moril" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-5, August 2020, pp.1532-1538, URL: https://www.ijtsrd.com/papers/ijtsrd33217.pdf

The article presents the results of research on the development of a method for detecting sex-linked embryonic lethal in the silkworm. In experiments on obtaining embryonic sex-linked letals, we used breeds C-5 and C-12 that differ in some biological properties. Sex-linked recessive letalswere obtained by the radiation method. So was chosen as the radiation source. The impact was made with gamma rays with a power of 24 R / s at the gamma-installation of the Institute of Nuclear Physics of the Academy of Sciences of the Republic of Uzbekistan. 400 clutches were taken, obtained by crossing normal females with males descended from fathers irradiated with a dose of 5 kR and crossed with non-irradiated females. The revival in these clutches ranges from 10% to 100%. With a sample of less than 250, indicators of the content of males in lethal and non-lethal families begin to transgress. Obviously, in these classes, families with and without lethal should be mixed, but it is not possible to separate them without additional genetic analysis. All indicators of three families 175, 438, 187, with the lowest percentages of males (63.8%; 61.7%; 63.0%), were studied in detail. The percentage of males in these families, although approaching lethal, is lower than in other families. Guided by the comparative indicators of the percentage of revival of eggs in dark and light semi-clutches, therefore, all families 175 and 438 are classified as lethal.

silkworm, lethal gene, grena, gamma rays, caterpillar


IJTSRD33217
Volume-4 | Issue-5, August 2020
1532-1538
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

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