Abstract
Circular genomes smaller than and similar to the genome of porcine circovirus 2 were obtained from pig tissues along with the full-length genome of porcine circovirus 2. The 922-, 839-, and 617-nucleotide-long genomes exhibit high homology to the rep gene plus the origin of replication sequence of porcine circovirus 2.
Highlights
Circular genomes smaller than and similar to the genome of porcine circovirus 2 were obtained from pig tissues along with the full-length genome of porcine circovirus 2
Porcine circovirus 2 (PCV2) is a kind of circular singlestranded DNA virus that belongs to the Circovirus genus in the Circoviridae family [1]
Rearranged genomes that harbor the origin of the replication sequence of PCV2 and whose coding regions were mainly similar to the cap gene of PCV2 were reported [8,9,10,11,12]
Summary
Circular genomes smaller than and similar to the genome of porcine circovirus 2 were obtained from pig tissues along with the full-length genome of porcine circovirus 2. PCV2 is involved in many disease syndromes of pigs, and the genome of PCV2 is 1,767 or 1,768 nucleotides (nt) in length [2, 3]. PCV2b/genotype 1/group 1 is the strain predominating the pig populations [5, 6] and can be divided into subgroups 1A, 1B, and 1C [7].
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