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Open AccessArticle

Comparison of the Androgenic Response of Spring and Winter Wheat (Triticum aestivum L.)

1
Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St, 60-637 Poznań, Poland
2
Department of Mathematical and Statistical Method, Poznań University of Life Sciences, 28 Wojska Polskiego St, 60-637 Poznań, Poland
*
Author to whom correspondence should be addressed.
Plants 2020, 9(1), 49; https://doi.org/10.3390/plants9010049
Received: 3 December 2019 / Revised: 23 December 2019 / Accepted: 27 December 2019 / Published: 31 December 2019
(This article belongs to the Special Issue Doubled Haploid Technology in Plant Breeding)
Androgenesis is potentially the most effective technique for doubled haploid production of wheat. It is not however widely used in breeding programmes due to its main limitation: the genotype dependence. Due to genetic differences between spring and winter wheat, it was assumed that both phenotypes are different in their capacity to conduct androgenesis. And so, the aim of this investigation was to verify the effectiveness of androgenesis induction and plant regeneration of spring and winter wheat genotypes while considering varying amounts of growth hormones in the induction medium. Fifteen genotypes of spring wheat and fifteen of winter wheat were used in the experiment. Six hundred anthers of each of the 30 genotypes were plated and analysed. Previous studies have allowed selection of the best medium for wheat androgenesis and a combination of growth hormones that are the most effective in stimulating microspore proliferation. Therefore, C17 induction media with two combinations of growth hormones were used: I—supplemented only by auxins (2,4-D and dicamba), and II—supplemented by auxin and cytokinin (2,4-D and kinetin). Data was recorded according to the efficiency of androgenic structure formation (ASF), green plant regeneration (GPR), and albino plant regeneration (APR). The results showed that the induction and regeneration of androgenesis in the spring wheat were more efficient than in the winter ones. The spring genotypes formed more androgenic structures and green plants on anthers plated on the medium supplemented only by auxins, in contrast to the winter genotypes which were better induced and regenerated on the medium supplemented by auxin and cytokinin. The study showed that to increase the efficiency of androgenesis, it is necessary to select appropriate factors such as concentration and type of hormones in medium composition, affecting the course of the culturing procedure according to the winter or spring phenotype of donor plants. View Full-Text
Keywords: androgenesis; anther culture; doubled haploid; spring wheat; winter wheat; induction medium androgenesis; anther culture; doubled haploid; spring wheat; winter wheat; induction medium
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Weigt, D.; Kiel, A.; Siatkowski, I.; Zyprych-Walczak, J.; Tomkowiak, A.; Kwiatek, M. Comparison of the Androgenic Response of Spring and Winter Wheat (Triticum aestivum L.). Plants 2020, 9, 49.

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