Hello everyone, Many thanks to all of you whom answered my inquiry on how to produce a nice map…Below are the links to the websites of programs and tools that I´ve received: http://www.ncdc.noaa.gov/paleo/softlib/mappad.html GenGIS (http://kiwi.cs.dal.ca/GenGIS) The GenGIS paper can be found at: http://genome.cshlp.org/content/19/10/1896 http://www.aquarius.geomar.de/omc/make_map.html http://www.diva-gis.org/download http://grass.itc.it/index.php http://www.esri.com/software/arcexplorer/download.html Hope it helps. Yours sincerely, Carolina Carolina I. Miño, MSc. Visiting Doctoral Student at: The Ecological and Conservation Genomics Laboratory University of Bristish Columbia - Okanagan 3333 University Way Kelowna, BC, Canada V1V1V7 Phone: 1-250-807-9439 Home University: Laboratório de Genética de Aves Departamento de Genética e Evolução Universidade Federal de São Carlos Rodovia Washington Luis km 235 SP-310 CEP: 13565-905 Monjolinho. São Carlos,SP, Brazil. Phone number: +55 16 3351 8391 (Work) Fax: +55 16 3351 8377 Carolina Minio