Frontiers of Agriculture and Food Technology

Frontiers of Agriculture and Food Technology ISSN 7295-2849 Vol. 10 (2), pp. 001-004, February, 2020. © International Scholars Journals

Full Length Research Paper

Sequence heterogeneity of the envelope-like domain in the Egyptian cotton Gossypium barbadense

Abdel Ghany A. Abdel Ghany¹ and Essam A. Zaki^2*

¹Institute of Efficient Productivity, Zagazig University, El Zagazig, Egypt.

²Genetic Engineering and Biotechnology Research Institute, GEBRI, Research Area, Borg El Arab, Post Code 21934, Alexandria, Egypt.

Accepted 15 September, 2019

Abstract

The current study aimed to investigate the evolution of env-like sequences in the Egyptian cotton Gossypium barbadense. DNA sequence determination and analysis of env-like sequences revealed that these sequences are heterogeneous in G. barbadense. The observed sequence diversity, however, seems to preserve the coding information. Phylogenetic analysis demonstrated that plant env -like sequences group together, suggesting their monophyletic origin. Gossypium env-like sequences are, however, more closely related to elements present in other plant species. Our result suggests that env-like sequences in cotton have evolved under functional constraint and likely to play a role in the life cycle of these elements.

Key words: Envelope, Gossypium, gypsy, plant retroviruses, retrotransposons, retroviruses, reverse transcriptase.