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By: Gutiérrez-Flores, Carina - León de la Luz, José Luis. - García-De León, Francisco J. - Cota, J. HugoType: ArticleIn: Comparative CytogeneticsVolume: 12Series:Issue: 1Date: 2018Page Range: 61-82Publication Info: Pensoft Publishers 2018Subjects: Cactaceae Cryptic speciation cytogeography diploid karyotype Pachycereus pringlei polyploidy