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Sociedade Brasileira de Genética, Genetics and Molecular Biology, 1(33), p. 99-108

DOI: 10.1590/s1415-47572009005000101

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The use and limits of ITS data in the analysis of intraspecific variation in Passiflora L. (Passifloraceae)

Journal article published in 2009 by Geraldo Mäder, G. Mader, Mäder,Geraldo, Priscilla M. Zamberlan, Zamberlan,Priscilla M., Nelson J. R. Fagundes, Fagundes,Nelson, Tielli Magnus, Francisco M. Salzano, Magnus,Tielli, Salzano,Francisco M., Sandro L. Bonatto ORCID, Bonatto,Sandro L., Freitas,Loreta B., Loreta B. Freitas
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The discovery and characterization of informative intraspecific genetic markers is fundamental for evolutionary and conservation genetics studies. Here, we used nuclear ribosomal ITS sequences to access intraspecific genetic diversity in 23 species of the genus Passiflora L. Some degree of variation was detected in 21 of these. The Passiflora and Decaloba (DC.) Rchb. subgenera showed significant differences in the sizes of the two ITS regions and in GC content, which can be related to reproductive characteristics of species in these subgenera. Furthermore, clear geographical patterns in the spatial distribution of sequence types were identified in six species. The results indicate that ITS may be a useful tool for the evaluation of intraspecific genetic variation in Passiflora.