Diversity and genetic structure of jenipapo (Genipa americana L.) Brazilian accessions

• Published in: Scientia agricola Vol. 71; no. 5; pp. 387 - 393
• Main Authors: Silva, Ana Veruska Cruz da, Freire, Karla Cristina Santos, Lédo, Ana da Silva, Rabbani, Allívia Rouse Carregosa
• Format: Journal Article
• Language: English
• Published: São Paulo - Escola Superior de Agricultura "Luiz de Queiroz" 01-10-2014; Universidade de São Paulo
• Subjects: AGRICULTURE, MULTIDISCIPLINARY; conservation; germplasm; molecular markers; tropical fruits; conservation; germplasm; molecular markers; tropical fruits
• ISSN: 0103-9016; 1678-992X; 0103-9016
• DOI: 10.1590/0103-9016-2014-0038

Usually known as jenipapo, Genipa americana L. is a Rubiaceae Brazilian native species. It is an important species in the restoration of Brazilian riparian forests and is one of the most promising fruit trees for sustainable harvesting programs. In this study we provide the first data on the genetic diversity and structure of a Jenipapo Germplasm Bank using inter simple sequence repeat (ISSR) markers. We evaluated 160 accessions from wild populations, and the data generated from 12 ISSR primers were used to determine genetic variability via a model-based Bayesian procedure (Structure) and molecular variance analysis. In addition, Shannon index, genetic diversity and Jaccard coefficients were estimated. A total of 12 primers were used, which generated 123 polymorphic fragments. Four groups were formed from the analysis of the fragments, and the CR1-2 genotype was isolated, being more divergent than the other genotypes.