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Isolation and genetic characterization of temperature-sensitive mutants that define five additional recombination groups in simian rotavirus SA11.

Abstract：

:Nineteen independent temperature-sensitive (ts) mutants were isolated from SA11 following mutagenesis with proflavin or 5-azacytidine. Fourteen of the ts mutants fell into one or another of five mutant groups previously defined by recombination. Five of the ts mutants defined five recombination groups (F, G, H, I, and J) that had not been previously identified. Thus, 10 of the 11 expected mutant groups have been identified in SA11. The prototype mutants of the 10 mutant groups were tested for recombination at nonpermissive temperature to determine if any group had a lesion affecting recombination. Most mutant pairs recombined efficiently; however, the tsH mutant was restricted in its recombination with the tsB and tsI mutants and the tsG and tsJ mutants failed to recombine at detectable levels at nonpermissive temperature. The mutants of groups F-J did not complement, or did so inefficiently, and interfered with the growth of wild type at both permissive and nonpermissive temperatures. The growth properties of the mutants of groups F-J are described.

journal_name

Virology

journal_title

Virology

authors

Ramig RF

doi

10.1016/0042-6822(83)90100-9

subject

Has Abstract

pub_date

1983-10-30 00:00:00

pages

464-73

issue

2

eissn

0042-6822

issn

1096-0341

journal_volume

130

pub_type

杂志文章

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