The objective of this work is to identify the different haplotypes circulating in the agro-ecological zones of Senegal and to study the demographic evolution of the populations studied. To do this, we have samples from each zone to be studied. These samples are subjected to massive breeding. Then, on average, ten individuals from each sampled locality were sequenced. These individuals constitute the study populations. Parameters such as neutrality indices, mismatch and haplotype network are determined using genetic software. The results showed the presence of 20 haplotypes out of 64 sequences studied. Ten of them are individual and three are majorities (H19, H1 and H4). This shows two homogeneous populations: that of Koki, which constitutes the majority of the H4 haplotype, and that of Tamba, which forms the central H19 haplotype. According to agro-ecological zones, the Casamance zone has the highest number of haplotypes (08) while the eastern Senegal zone has the lowest number (03). The demographic parameters show a gene flow between the different populations. Some populations are expanding, such as those of Fouta, Tamba and Koki, which have a negative and insignificant Tajima D and Fu FS, confirmed by SSD, rg and mismatch curves. On the other hand, the other populations are in equilibrium, such as those of Barkédji, Diannah malary, Carrefour diaroumé and Fatick; showing positive Tajima's D and Fu's FS and Fu's FS that are negative only for Diannah malary and Fatick. Following the agro-ecological zones, ZVFS ZSO are expanding in population while the remaining zones are in balance.