Differential Shape of Geminivirus Mutant Spectra Across Cultivated and Wild Hosts With Invariant Viral Consensus Sequences

Frontiers in Plant Science
Sonia Sánchez-CamposAna Grande-Pérez

Abstract

Geminiviruses (family Geminiviridae) possess single-stranded circular DNA genomes that are replicated by cellular polymerases in plant host cell nuclei. In their hosts, geminivirus populations behave as ensembles of mutant and recombinant genomes, known as viral quasispecies. This favors the emergence of new geminiviruses with altered host range, facilitating new or more severe diseases or overcoming resistance traits. In warm and temperate areas several whitefly-transmitted geminiviruses of the genus Begomovirus cause the tomato yellow leaf curl disease (TYLCD) with significant economic consequences. TYLCD is frequently controlled in commercial tomatoes by using the dominant Ty-1 resistance gene. Over a 45 day period we have studied the diversification of three begomoviruses causing TYLCD: tomato yellow leaf curl virus (TYLCV), tomato yellow leaf curl Sardinia virus (TYLCSV) and tomato yellow leaf curl Malaga virus (TYLCMaV, a natural recombinant between TYLCV and TYLCSV). Viral quasispecies resulting from inoculation of geminivirus infectious clones were examined in plants of susceptible tomato (ty-1/ty-1), heterozygous resistant tomato (Ty-1/ty-1), common bean, and the wild reservoir Solanum nigrum. Differences in virus fitn...Continue Reading

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Citations

May 16, 2019·Antimicrobial Agents and Chemotherapy·Belén BorregoAlejandro Brun
Mar 8, 2019·Frontiers in Microbiology·Miguel JuárezPedro Gómez
Jun 11, 2019·Annual Review of Virology·Fernando García-Arenal, Francisco Murilo Zerbini
Oct 18, 2019·PLoS Genetics·Esteban Domingo, Celia Perales
Dec 22, 2020·Virus Research·Midori TabaraToshiyuki Fukuhara
Oct 8, 2021·PLoS Pathogens·Laura Medina-PucheRosa Lozano-Durán

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Datasets Mentioned

BETA
AF071228
Z25751
AF271234

Methods Mentioned

BETA
electrophoresis
PCR

Software Mentioned

SeqBuilder
MEGA
EditSeq
SPSS
SeqMan

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