Journal Article

Seed Surface Architecture and Random Amplified Polymorphic DNA Profiles of <i>Paulownia fortunei, P. tomentosa</i> and their Hybrid

PRAKASH P. KUMAR, C. DIMPS RAO, G. RAJASEGER and A. N. RAO

in Annals of Botany

Published on behalf of The Annals of Botany Company

Volume 83, issue 2, pages 103-107
Published in print February 1999 | ISSN: 0305-7364
Published online February 1999 | e-ISSN: 1095-8290 | DOI: http://dx.doi.org/10.1006/anbo.1998.0780
Seed Surface Architecture and Random Amplified Polymorphic DNA Profiles of Paulownia fortunei, P. tomentosa and their Hybrid

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The surface patterns of winged seeds of Paulownia fortunei, P. tomentosa and P. fortunei×P. tomentosa were examined by scanning electron microscopy. The pattern of reticulation on the wings and seed coat of P. fortunei and the hybrid are comparable, while that on P. tomentosa is different and more elongated. Also, the wings are more extended at the oblong ends of the seeds in the former when compared to the wings of P. tomentosa. Distinct random amplified polymorphic DNA (RAPD) patterns were obtained for the three taxa and P. kawakamii with five different random oligonucleotide primers, suggesting that the method can yield genetic markers for differentiating the taxa. Also, Southern blot analyses of the RAPD products of the hybrid and the two parent species revealed shared (inherited) genetic polymorphisms. Copyright 1999 Annals of Botany Company

Keywords: Paulownia species and hybrid, seed surface architecture, reticulated thickening, RAPD markers, Scrophulariaceae.

Journal Article.  7 words. 

Subjects: Ecology and Conservation ; Evolutionary Biology ; Plant Sciences and Forestry

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