e-journal

Molecular characterization and recombination analysis of an Indian isolate of Onion yellow dwarf virus

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This study presents the first whole genome sequence of Onion yellow dwarf virus (OYDV isolate RR1) from onion (Allium cepa) in India along with phylogenetic and recombination studies. We examined the sequence variability, distribution of simple sequence repeats (SSRs), and recombination breakpoints of different OYDV geographical isolates. The P1 and P3 regions of OYDV show a higher rate of sequence variability in amino acid and nucleotide sequences than other genomic regions. Entropy peaks of deduced amino acid sequences were higher in both regions (P1 and P3) of different OYDVs. The observed frequency of microsatellites was also higher in the P3 region of all OYDV genomes. The Indian isolate RR1 showed 75–98 % similarity with the other OYDV isolates in nucleotide
and amino acid sequences and has 43 microsatellites and two compound microsatellites. It was most closely related to garlic isolate MS/SW1 from Australia. Isolate RR1 contained six recombination breakpoints in different genomic regions with the major parent related to the MS/SW1 (Australian) and SG1 (Spanish) OYDV isolates. The phylogenetic and recombination study demonstrated the divergence of Indian isolate RR1 from OYDV isolate from Australia.

Keywords Onion yellow dwarf virus . Recombination . Entropy. Phylogeny

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Ketersediaan

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Informasi Detail

Judul Seri

Eur J Plant Pathol

No. Panggil

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Penerbit

New York : Springer., 2015

Deskripsi Fisik

Eur J Plant Pathol (2015) 143:437–445

Bahasa

English

ISBN/ISSN

DOI 10.1007/s10658-0

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

(2015) 143

Subjek

PENYAKIT TUMBUHAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

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