Abstract
Six parental pure lines of Iran silkworm were recorded individually, with forty males and forty females in each of these six parental lines acting as parents of selected groups. In addition, as random groups, forty males and forty females having equal average with the average community in each one of these six parental lines were chosen. With the condition on lines amplification system, silkworms grandfather and mother were cultured, and three types of commercial hybrid larvae eggs produced in the fourth generation. Each of these larvae eggs were produced in two states (parental lines and random parental lines). The performance of these two hybrids was compared and the results of the individual selection system of parental lines on the performance of these hybrids were analyzed. In this study, 27 traits were studied. Based on obtained results, it is cleared that selection increase performance in silkworm hybrids. In all hybrids, the traits of alive larvae number, produced cocoon number, single best cocoon weight, and 10000 larvae cocoon weight showed significant increase based on selection (P < 0.05).
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Acknowledgements
This manuscript is obtained from the MSc. thesis of the first author at Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran. We are grateful to the Iran Silkworm Research Centre (ISRC), Rasht, Iran for providing silkworm data and to Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran for support.
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The authors did not receive support from any organization for the submitted work. No funding was received to assist with the preparation of this manuscript. No funding was received for conducting this study. No funds, grants, or other support were received.
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All authors contributed to the study conception and experimental design. Material preparation and data collection were undertaken by Maryam Khaligh. The experimental Technique was advised by Alireza Seidavi, Shahabodin Gharahveysi. Data analysis was performed by Maryam Khaligh, Alireza Seidavi, Shahabodin Gharahveysi and Tamal Das. The first draft of the manuscript was written by Maryam Khaligh, which was corrected and edited by all authors. All authors have read and approved the final manuscript.
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Khaligh, M., Seidavi, A., Gharahveysi, S. et al. Measurement of response to selection in silkworm commercial hybrids against individual selection of parental lines. Int J Trop Insect Sci 44, 31–39 (2024). https://doi.org/10.1007/s42690-023-01123-2
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DOI: https://doi.org/10.1007/s42690-023-01123-2