Abstract
Abstract The study aimed at investigating the anatomic and DNA content characteristics of 12 Anthurium genotypes. A large genomic amplitude was observed in the genotypes, ranging from 4.95 to 22.74 pg of DNA. Differences in DNA content, assessed by flow cytometry, allowed the differentiation between the genotypes A. andraeanum, A. affine, A. bomplandii, and A. gracile and the hybrid (A. lindmanianum × A. guianesis) and clustered the group A. raimundii, plowmanii and jemanii of IFT 258, in all analyses. Anatomical studies clustered the genotypes A. andraeanum (Astral and Rubi) and distinguished the hybrid and A. bomplandii from the other genotypes, with anatomical features specific to each genotypes. Cluster analysis allowed grouping of the genotypes A. raimundii and A. affine, bomplandii and gracile, A. jemanii and plowmanii, and the cultivars Astral and Rubi, and isolated the hybrid. Demonstrated the importance of grouping in the diagnosis of species belonging to the genus Anthurium.
Highlights
The genus Anthurium is considered taxonomically complex, with many species not very well known, and only a few studies on their geographical distribution to-date
Tillich (2003) points out that there are many gaps related to the structure of the seedling in Araceae, and important details about the morphology are still unclear even though 36 genera of the family have been studied
Publications on the Araceae family include an extensive work on leaf anatomy, but few anatomical analyses have been performed on the genus Anthurium
Summary
The genus Anthurium is considered taxonomically complex, with many species not very well known, and only a few studies on their geographical distribution to-date. Tillich (2003) points out that there are many gaps related to the structure of the seedling in Araceae, and important details about the morphology are still unclear even though 36 genera of the family (including Anthurium) have been studied. Publications on the Araceae family include an extensive work on leaf anatomy, but few anatomical analyses have been performed on the genus Anthurium. The most recent anatomical studies on Anthurium are based on the anatomy of the leaf and spathe (Mantovani and Pereira 2005, Mantovani et al 2010) and leaf anatomy of young and adult plants in an epiphytic habitat (Lorenzo et al 2010)
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