ANALYSIS OF THE MEIOTIC PROCESS IN NEW COMPLEX INTERSPECIFIC F1 HYBRIDS OF COTTON OBTAINED WITH THE PARTICIPATION OF THE ‘SULTON’ COTTON VARIETY

Authors

  • Sirojiddin Turdiqulovich Jo‘raev Doctor of Biological Sciences (DSc), Professor Tashkent State Agrarian University Author
  • Olimova Zulkhumorkhon Kakhramonjon kizi Researcher Author
  • Toshmuradov Ismoil Azamat ugli Independent Researcher Tashkent State Agrarian University Author
  • Boyliyev Ma’ruf Olim ugli Researcher Author

Keywords:

Cotton, introgressive lines, F₁ hybrids, meiosis, chromosome pairing, meiotic stability, cytogenetic analysis.

Abstract

This study examined chromosome pairing at metaphase I of meiosis in 10 F₁ cotton hybrid combinations derived from introgressive lines crossed with Sulton in 2025. Four combinations exhibited regular pairing with 26 closed bivalents, indicating high meiotic stability. The remaining combinations showed varying degrees of pairing abnormalities, including univalents, open bivalents, and quadrivalents, suggesting possible structural chromosomal differences between parental forms. These findings identify promising combinations for further breeding evaluation and highlight the importance of cytogenetic analysis in selecting meiotically stable cotton hybrids.

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Published

2026-08-31

Issue

Vol. 2 No. 8 (2026)

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

ANALYSIS OF THE MEIOTIC PROCESS IN NEW COMPLEX INTERSPECIFIC F1 HYBRIDS OF COTTON OBTAINED WITH THE PARTICIPATION OF THE ‘SULTON’ COTTON VARIETY. (2026). Eureka Journal of Agricultural Science & Bio-Innovation, 2(8), 57-63. https://eurekaoa.com/index.php/7/article/view/1428