Stability of Citrus tristeza virus protective isolate 'Pêra IAC' according to SSCP analysis of old and new lines of three sweet orange varieties Waldecy Matos da Silva Leonel Maria Júlia Corazza Carlos Alexandre Zanutto Gerd Walter Müller Sergio Alves Carvalho William Mário Carvalho Nunes Publication Year of Publication: 2015 Identifiers Other Numbers: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052015000100008 Alternative titles Google ScholarBibTeXRIS Locators