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Two closely related Tulipa species with different ploidy levels show distinct germination rates

Published online by Cambridge University Press:  08 April 2020

Giovanni Astuti Open the ORCID record for Giovanni Astuti [Opens in a new window] ,
Sandro Pratesi ,
Lorenzo Peruzzi Open the ORCID record for Lorenzo Peruzzi [Opens in a new window]  and
Angelino Carta Open the ORCID record for Angelino Carta [Opens in a new window]
Giovanni Astuti*
Affiliation:
Department of Biology, University of Pisa, Via Derna 1, Pisa56126, Italy
Sandro Pratesi
Affiliation:
Department of Biology, University of Pisa, Via Derna 1, Pisa56126, Italy
Lorenzo Peruzzi
Affiliation:
Department of Biology, University of Pisa, Via Derna 1, Pisa56126, Italy
Angelino Carta
Affiliation:
Department of Biology, University of Pisa, Via Derna 1, Pisa56126, Italy
*
Author for correspondence: Giovanni Astuti, E-mail: gastuti@biologia.unipi.it
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Abstract

In the tetraploid Tulipa sylvestris we found larger and heavier seeds that germinated around 28 days earlier than those of the diploid ancestor Tulipa pumila. The faster germination of the tetraploid species is linked to the faster growth of embryos, which reached their final length much earlier than the embryos of the diploid species. In conclusion, we argue a cautionary approach when dealing with comparative studies on ploidy level and germination to avoid misinterpretation of results when set against the natural conditions.

Keywords

autopolyploidyembryo:seed ratioLiliaceaemean germination timeradicle protrusion
Type
Short Communication
Information
Seed Science Research , Volume 30 , Issue 1 , March 2020 , pp. 45 - 48
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Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press

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