Coevolution of a Persistent Plant Virus and Its Pepper Hosts

Molecular Plant-microbe Interactions : MPMI
Maliheh Safari, Marilyn J Roossinck

Abstract

There are many nonpathogenic viruses that are maintained in a persistent lifestyle in plants. Plant persistent viruses are widespread, replicating in their hosts for many generations. So far, Endornaviridae is the only family of plant persistent viruses with a single-stranded RNA genome, containing one large open reading frame. Bell pepper endornavirus (BPEV), Hot pepper endornavirus, Capsicum frutescens endornavirus 1 (CFEV 1) have been identified from peppers. Peppers are native to Central and South America and, as domesticated plants, human selection accelerated their evolution. We investigated the evolution of these endornaviruses in different peppers including Capsicum annuum, C. chacoense, C. chinense, C. frutescens, C. baccutum, and C. pubescens using two fragments from the viral helicase (Hel) and RNA dependent RNA polymerase (RdRp) domains. In addition, using single nucleotide polymorphisms, we analyzed the pepper host populations and phylogenies. The endornaviruses phylogeny was correlated with its Capsicum species host. In this study, BPEV was limited to C. annuum species, and the RdRp and Hel phylogenies identified two clades that correlated with the host pungency. No C. annuum infected with CFEV 1 was found in this...Continue Reading

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Citations

Aug 8, 2018·The New Phytologist·Marilyn J Roossinck
Dec 24, 2019·The New Phytologist·Karen-Beth G Scholthof
May 16, 2020·Frontiers in Plant Science·Katarzyna Otulak-KoziełRodrigo A Valverde
Dec 26, 2018·Frontiers in Microbiology·J Musembi MutukuJagger J W Harvey
Aug 6, 2021·Molecular Biology and Evolution·Mahtab PeyambariMarilyn J Roossinck

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