title: The Palomero genome suggests metal effects on domestication.
abstract: Maize domestication (Zea mays ssp. mays L.) resulted in a wide diversity of native landraces that represent an invaluable source of genetic information for exploring natural variation and genome evolution. We sequenced de novo the approximately 2-gigabase genome of the Mexican landrace Palomero Toluqueño (Palomero) and compared its features to those of the modern inbred line B73. We revealed differences concordant with its ancient origin and identified chromosomal regions of low nucleotide variability that contain domestication genes involved in heavy-metal detoxification. Our results indicate that environmental changes were important selective forces acting on maize domestication.
authors: Laboratorio Nacional de Genómica para la Biodiversidad, CINVESTAV Irapuato, Km 9.6 Libramiento Norte Carretera Irapuato-León, 36500 Irapuato, Mexico.
authors: Jean-Philippe
authors: JP
authors: Vielle-Calzada
authors: Octavio
authors: O
authors: Martínez de la Vega
authors: Gustavo
authors: G
authors: Hernández-Guzmán
authors: Enrique
authors: E
authors: Ibarra-Laclette
authors: Cesar
authors: C
authors: Alvarez-Mejía
authors: Julio C
authors: JC
authors: Vega-Arreguín
authors: Beatriz
authors: B
authors: Jiménez-Moraila
authors: Araceli
authors: A
authors: Fernández-Cortés
authors: Guillermo
authors: G
authors: Corona-Armenta
authors: Luis
authors: L
authors: Herrera-Estrella
authors: Alfredo
authors: A
authors: Herrera-Estrella
mesh_terms: D002874:Chromosome Mapping; D032461:Chromosomes, Plant / Q000235:genetics; D018556:Crops, Agricultural / Q000235:genetics / Q000254:growth & development; D017343:Genes, Plant; D014644:Genetic Variation; D018745:Genome, Plant; D019216:Metals, Heavy / Q000032:analysis / Q000378:metabolism* / Q000633:toxicity; D008969:Molecular Sequence Data; D012641:Selection, Genetic; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid; D012987:Soil / Q000032:analysis; D003313:Zea mays / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism*
chemical_list: D019216:Metals, Heavy; D012987:Soil