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Fig. 1 | BMC Infectious Diseases

Fig. 1

From: Defective HIV-1 envelope gene promotes the evolution of the infectious strain through recombination in vitro

Fig. 1

Construction of phylogenetic tree. The parent strains NL4–3 and SG3 were bold marked. Branches with bootstrap values higher than 0.9 were considered as phylogenetic clusters. The NL4–3 and SG3 clusters were respectively colored in red and blue. The sequences in the two parent clusters were recognized as pure strains and those between them were considered as recombinants

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BMC Infectious Diseases

ISSN: 1471-2334

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