Sequence heterogeneity of the envelope-like domain in cultivated allotetraploid Gossypium species and their diploid progenitors

• Autorzy: Hafez E E , Abdel Ghany A A , Paterson A H , Zaki E A
• Języki publikacji: EN

Abstrakty

EN

Retroviral envelope (env)-like sequences in 2 cultivated allotetraploid cottons and their diploid progenitors have been identified and characterized in this study. DNA sequence analysis reveals that these sequences are heterogeneous. The observed sequence diversity, however, seems to preserve coding information. This is evidenced by the detection of the transmembrane domain (TM), which is the most conserved feature of the divergent retroviral env genes. The high ratio of synonymous to nonsynonymous changes suggests that these sequences are evolving under purifying selection. Phylogenetic analysis shows that Gossypium sequences closely cluster with a lineage of plant endogenous retroviruses that have an env-like gene. These results provide evidence for the antiquity and the wide diversity of env-like sequences in the Gossypium genome.

Słowa kluczowe

EN

heterogeneity; allotetraploid; envelope gene; Gossypium; plant species; cotton; diploid; progenitor; horizontal transfer; retrotransposon

• Wydawca: -
• Czasopismo: Journal of Applied Genetics
• Rocznik: 2009
• Tom: 50
• Numer: 1
• Opis fizyczny: p.17-23,fig.,ref.

Twórcy

autor

Hafez E E

• Molecular Plant Pathology Department, Arid Land Research Institute, Mubarak City for Research, Alexandria, Egypt

autor

Abdel Ghany A A

• Institute of Efficient Productivity, Zagazing University, El Zagazig, Egypt

autor

Paterson A H

• Plant Genome Mapping Laboratory, University of Georgia, Athens, Georgia, USA

autor

Zaki E A

• Nucleic Acids Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), Mubarak City for Research, Alexandria, Egypt

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