title: Analysis of umbu (Spondias tuberosa Arruda (Anacardiaceae)) in different landscape management regimes: a process of incipient domestication?
abstract: Plant domestication is an evolutionary process guided by human groups who modify the landscape for their needs. The objective of this study was to evaluate the phenotypic variations between populations of Spondias tuberosa Arruda (umbuzeiro) when subjected to different local landscape management strategies. The influence of the landscape management system on these populations was evaluated in five identified regional units (mountains, base of mountains, pastures, cultivated areas and home gardens). Ten individuals were randomly selected from each region and subjected to morphological and chemical fruit analysis. The diversity index, based on Simpson's index, was determined for the different populations. We then evaluated the morphological differences between the individual fruits from the distinct landscape areas. We observed no significant differences in morphological diversity between the areas studied. Our data suggest that the umbuzeiro specimens in this region may be in the process of incipient domestication.
authors.affiliation: Departamento de Biologia, Universidade Federal do Piauí (UFPI), Campus Professora Cinobelina Elvas, BR 135, CEP 64900-000, Bom Jesus, Piauí, Brazil. ernanilinsneto@ufpi.edu.br
authors.forename: Ernani Machado de Freitas
authors.initials: EM
authors.lastname: Lins Neto
authors.forename: Nivaldo
authors.initials: N
authors.lastname: Peroni
authors.forename: Christine Maria Carneiro
authors.initials: CM
authors.lastname: Maranhão
authors.forename: Maria Inês Sucupira
authors.initials: MI
authors.lastname: Maciel
authors.forename: Ulysses Paulino
authors.initials: UP
authors.lastname: de Albuquerque
mesh_terms: D000383:Agriculture / Q000379:methods*; D027926:Anacardiaceae / Q000145:classification* / Q000235:genetics / Q000254:growth & development / Q000502:physiology; D001938:Brazil; D003247:Conservation of Natural Resources; D004777:Environment; D014644:Genetic Variation; D010641:Phenotype