Coordenacao de Astronomia e Astrofisica,Observatorio Nacional,Rio de Janeiro,Brazil;
DNA Diagnostic Laboratory(LDD),State University of Rio de Janeiro(UERJ),Rio de Janeiro,Brazil;
Department of Genetics,State University of Rio de Janeiro(UERJ),Rio de Janeiro,Brazil;
X-Chromosome STR Markers; Recombination; Probability of Linkage; LOD Score;