1887

Abstract

Complete nucleotide sequences of the DNA-A-like molecules of three East African cassava mosaic virus (EACMV) isolates from Kenya (-K, 2801 nt) and Malawi (-MH and -MK, both 2804 nt) were determined. These sequences were compared with that published for a Tanzanian isolate (-T, 2801 nt) and the partial sequence of athird Malawian isolate. Intergenic region sequences of all isolates, and deduced amino acid sequences of their AC1 (Rep) proteins, each formed a tightly related cluster that was distinct from the comparable components of other begomoviruses. Other complementary-sense genes () differed between EACMV isolates in a way consistent with the accumulation of point mutations. In contrast, virus-sense genes () of isolates -MH and -MK differed (substantially for ) from those of other EACMV isolates but somewhat resembled those of tomato yellow leaf curl virus - Israel, suggesting they had been acquired by recombination with an unidentified begomovirus.

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/content/journal/jgv/10.1099/0022-1317-79-11-2835
1998-11-01
2022-05-23
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