title: Comparative gene expression study to identify genes possibly related to storage root formation in cassava.
abstract: Cassava storage roots result from swelling of adventitious roots by secondary growth. In the present study we aimed to gain insight into the molecular processes occurring during cassava storage root formation. We report a comparative gene expression study in adventitious and storage roots in order to identify genes possibly related to storage organ formation. Our results revealed five genes with higher expression levels in secondary xylem of storage roots than adventitious roots. Among them, the Mec1 gene coding for Pt2L4 glutamic acid-rich protein and a putative RING Zinc Finger and LEA protein genes were strongly induced in secondary xylem tissue.
authors.affiliation: EMBRAPA-Recursos Genéticos e Biotecnologia, Parque Estaçao Biológica-PqEB, Caixa postal 02372, Brasilia-DF, Brazil 70770-900. bsouza@ufpa.br
authors.forename: Cláudia Regina Batista
authors.initials: CR
authors.lastname: de Souza
authors.forename: Luiz Joaquim Castelo Branco
authors.initials: LJ
authors.lastname: Carvalho
authors.forename: Júlio Cézar
authors.initials: JC
authors.lastname: de Mattos Cascardo
mesh_terms: D015152:Blotting, Northern; D015870:Gene Expression / Q000502:physiology*; D020869:Gene Expression Profiling; D017343:Genes, Plant / Q000502:physiology*; D002365:Manihot / Q000235:genetics* / Q000254:growth & development*; D018517:Plant Roots / Q000235:genetics / Q000254:growth & development*