Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2018.245.252Ricken SchuelterAdilson FriskeElcio Albino Corazza KaeferKaian MarcolinJonatas Fabiana da SilvaMayara Gruska VendruscoloEliane SchusterIvan 52018215Background and Objective: With the advent of high-scale genotyping platforms, association studies have become important tools for finding genomic regions of interest in breeding programs, due to the fact that their improved more accuracy than the other tools. The aim of this work was to map genomic regions associated with grain maturation in common maize strains. Materials and Methods: For linkage disequilibrium mapping, 72 strains were previously genotyped for SNP markers on the 650K platform and their respective genotypic values were predicted for male and female flowering and area below the moisture curve. The analysis of association between the SNPs markers and the characters was performed using mixed linear model and stepwise multiple regression. Results: The significant associations detected for male and female flowering were found to be distributed in all chromosomes, with a higher concentration in genomic regions of chromosomes 1, 2, 3, 5, 9 and 10. For the area below the moisture curve, it was found a smaller number of significant associations, being concentrated in the chromosomes 1, 2, 3, 6, 9 and 10 and absent in chromosomes 4 and 8. By stepwise analysis, it obtained complete models that account for 79, 93 and 56% of the variation for the genotypic values, respectively, with the identification of genomic regions pre-dominantly on chromosomes 1 and 3. Conclusion: Thus, the detection of similar and distinct genomic regions for these traits, reveals the potential for the use of significant associations detected in chromosomes 1 and 3 to obtain the germplasm maturity required in breeding programs.]]>Mantovani, E.C., I.A. Pereira Filho, J.H.M. Viana, M.R. Albuquerque Filho and M.F. Oliveira et al.,20159th Edn.,Fiorini, F.V.A., R.G. von Pinho, R.B. Camargos, A.D.O. Santos and I.V.A. Fiorini,20151488100Lima, J.L., J.C. Souza, J.C. Machado and M.A.P. Ramalho,200867127131Marcondes, M.M., M.V. Faria, M.C. Mendes, B.R. de Oliveira, J.F. Santos, P.H. Matchula and A.L.B. Walter,20154 maize lines in top crosses.]]>14145154Buckler, E.S., J.B. Holland, P.J. Bradbury, C.B. Acharya and P.J. Brown et al.,2009325714718Li, Y.X., C. Li, P.J. Bradbury, X. Liu and F. Lu et al.,201686391402Fdlipenco, A., V. Mandache, G. Valsan, F. Ivan and I. Ciocazanu,2013Zea mays L.).]]>70223226Meyer, A.S., R.A. Leandro, A.A.F. Garcia, C.L. Souza, Jr. and A.P. Souza,201331558581Faleiro, F.G.,20112011pp: 55-120pp: 55-120Resende, J., M.F.R., A.A. Alves, C.F.B. Sanchez, M.D.V. Resende and C.D. Cruz,20132013pp: 375-424pp: 375-424Bernardo, R. and J. Yu,20074710821090Durand, E., S. Bouchet, P. Bertin, A. Ressayre and P. Jamin et al.,201219015471562McDonald, M.B., L.J. Elliot and P.M. Sweenery,199422171176Shaner, G. and R.E. Finney, 19776710511056Resende, M.D.V.,2008Page: 330Page: 330Gao, H., A. McDonnell, D.A. Harrison, T. Moore and S. Adam et al.,200733667679Bradbury, P.J., Z. Zhang, D.E. Kroon, T.M. Casstevens, Y. Ramdoss and E.S. Buckler,20072326332635SAS.,1990Version 6.0, 3rd Edn., Vol. 2,Page: 329Page: 329Camara, T.M.M., D.A.V. Bento, G.F. Alves, M.F. Santos, J.U.V. Moreira and C.L.D. Souza, Jr.,200766595603Smalley, M.D., J.L. Daub and A.R. Hallauers,200449221229Flint‐Garcia, S.A., A.C. Thuillet, J. Yu, G. Pressoir and S.M. Romero et al.,20054410541064Kong, F., B. Liu, Z. Xia, S. Sato and B.M. Kim et al.,201015412201231Jung, C. and A.E. Muller,200914563573Ducrocq, S., D. Madur, J.B. Veyrieras, L. Camus-Kulandaivelu and M. Kloiber-Maitz et al.,2008Vgt1 on flowering time adaptation in maize: Evidence from association mapping and ecogeographical information.]]>17824332437Hung, H.Y., L.M. Shannon, F. Tian, P.J. Bradbury and C. Chen et al.,2012ZmCCT and the genetic basis of day-length adaptation underlying the postdomestication spread of maize.]]>109E1913E1921Jian, Y., C. Xu, Z. Guo, S. Wang, Y. Xu and C. Zou,2017Zea mays L.) genome size indicated by 180-bp knob abundance is associated with flowering time.]]>2017Salvi, S., G. Sponza, M. Morgante, D. Tomes and X. Niu et al.,20071041137611381Schuster, I. and C.D. Cruz,20082nd Edn.,Page: 568Page: 568Cantor, R.M., K. Lange and J.S. Sinsheimer,201086622Fernando, R.L. and D. Garrick,20132013pp: 237-274pp: 237-274Motyer, A.J., C. McKendry, S. Galbraith and S.R. Wilson,20112011Yang, N., Y. Lu, X. Yang, J. Huang and Y. Zhou et al.,20142014Meng, X., M.G. Muszynski and O.N. Danilevskaya,2011FT-like ZCN8 gene functions as a floral activator and is involved in photoperiod sensitivity in maize.]]>23942960Cruz, C.D., A.J. Regazzi and P.C.S. Carneiro,20124th Edn.,Page: 514Page: 514Ramalho, M.A.P., J.B. Santos and C.A.B.P. Pinto,20125th Edn.,Page: 565Page: 565