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How much influence does the paternal parent have on seed germination?

Published online by Cambridge University Press:  10 January 2019

Jerry M. Baskin  and
Carol C. Baskin Open the ORCID record for Carol C. Baskin [Opens in a new window]
Jerry M. Baskin
Affiliation:
Department of Biology, University of Kentucky, Lexington, KY 40506-0225, USA
Carol C. Baskin*
Affiliation:
Department of Biology, University of Kentucky, Lexington, KY 40506-0225, USA Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546-0312, USA
*
Author for correspondence: Carol C. Baskin, Email: cbask0@uky.edu
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Abstract

It is well documented that the mother plant has much more influence than the father on seed dormancy/germination, especially of the F1 offspring, primarily by providing all material (maternally derived tissue) to the diaspore coat(s); by maternal environmental effects and provisioning of nutrient resources, mRNA transcripts, protein, the hormone abscisic acid and nitrate to the seed during its development; and by determining progeny environment via dispersal and phenology. There is some evidence that the paternal influence on seed dormancy/germination of the offspring (seeds) can be mediated through multiple paternity (including mate number and diversity), non-nuclear (cytoplasmic) and nuclear (genotypic) inheritance and paternal environmental effects. Our primary aim was to determine via a literature review the influence (or not) of the paternal parent on seed germination. Altogether, 37 of 59 studies (62.7%) indicated a positive influence of the father on seed germination, although not all of them were statistically significant. In general, however, results of studies reported in the literature do not offer strong support for the paternal parent having a major role in seed germination (or seed size) of his F1 offspring.

Keywords

epigenetic modificationgenomic imprintingmultiple paternitynon-Mendelian genetic effectsparental conflict theoryquality of pollen donorseed germinationseed provisioningtransgenerational plasticity

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Type
Review Paper
Information
Seed Science Research , Volume 29 , Issue 1 , March 2019 , pp. 1 - 11
Copyright
Copyright © Cambridge University Press 2019 

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