Nucleotide sequence of the infectious cloned DNA components of ...

.::) Oxford University Press 1990

Nucleic Acids Research, Vol. 18, No. I

Nucleotide

of the infectious cloned DNA components of African cassava mosaic virus (Nigerian strain) sequence

Bret Morris, Leigh Coates, Suzanne Lowe, Kim Richardson and Peter Eddy Molecular Biology Facility, DSIR Plant Protection, Private Bag, Auckland, New Zealand Submitted November 21, 1989

African cassava mosaic virus Nigerian strain (ACMV-N, 1) DNA 1 is 2781 long and contains five open reading frames (ORFs)coding for proteins with Mrl3,131 (13.1K), Mr30,210 (30.2K), Mr4O,435 (40.4K), MrI5,178 (15.2K) and MrI5,937 (15.9K). ACMV-N DNA 2 is 2725 long and contains two ORFs coding for proteins with Mr29,379 (29.4K) and Mr33,678 (33.7K). The ACMV-N DNA 1 sequence 448n to 1227n encoding the 30.2K ORF has been reported (1). Comparison of the ACMV-N nucleotide sequence with ACMV Kenyan strain (ACMV-K, 2) shows 96% homology for DNA 1 and 94% homology for DNA 2. Nucleotide changes from the ACMV-K strain are shown in the upper case with additional nucleotides (+) and deleted nucleotides (-) above the sequence. The 13.1K, acmv-n DNA 1

1 81 161 241 321 401 481 561

641 721 801 881 961 1041 1121 1201 1281 1361 1441

1521 1601 1681 1761 1841 1921 2001

EMBL accession nos X17095, X17096

30.2K, 40.4K, 15.2K, 15.9K, 29.4K and33.7K ORFs contain 6, 11, 6, 4, 9, 19 and 8 amino acid changes respectively when compared to the corresponding ACMV-K ORFs. Plants of Nicotiana benthamiana and N. clevelandii inoculated with combinations of DNA 1 and DNA 2 of ACMV-N and ACMVK excised from their respective clones showed a correlation of more severe symptoms with DNA 2 of ACMV-K. This contrasts with that previously reported (1).

REFERENCES 1. Stanley,J. et al. (1985) J. Gen. Virol. 66, 1055-1061. 2. Stanley,J. and Davies,J.W. (1985) In Plant Molecular Virology, Vol. 2, Davies,J.W. (ed) CRC Press, Boca Raton,

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198 Nucleic Acids Research 2081 2161 2241 2321 2401 2481 2561 2641 2721

cttccctgttctgctatcaccttctatTacaatactattGggtctccatggccgcgcagcggaatccctaacattatcag cgacccattcttcaaGttcaTcaggaacttggtcaaaggaagaacatgggaagggagaaacataaggagctggtggctcC tggaaaatcctatctaaattactatttagattatgaaactgaagtacaaagtcctttgggactaattccctaatTacatt aagagcttctgacttactgccgctgttaagcgctttggcgtaagcatcattcgctgattgttgAccgcctctagcagatc gtccatcgatCtgaaattgtccccattcgacggtgtcTccgtccttatccagataggacttgacatcTgagcttgatttg gcaccttgaatgttggggtggaaaTtggtgctacagcttgggtgtacacaatcgaagagacgattgttcgtaatcgtgat CttTccctcgaattgGatgagggcatgcaagtgaggttccccattctgatgcagctctcGacagattttaatgaacttag ggtttgatgggagagaTagtgtttgaatgaatgacagCaggtgttctttgggtatagaacaAtttgggtatgtgagaaag acattcttggcttgaaCtcTaaaacgaggagttcGcatTttgaccaagtcaattggagaca

acmv-n DNA 2 1 81 161 241 321 401 481 561 641 721 801 881 961 1041 1121 1201 1281 1361 1441 1521 1601 1681 1761 1841 1921 2001 2081 2161 2241 2321 2401 2481 2561 2641 2721

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