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Article

Endopolyploidy Variation in Wild Barley Seeds across Environmental Gradients in Israel

1
Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany, Czech Academy of Sciences, Šlechtitelů 31, 779 00 Olomouc, Czech Republic
2
The Franciszek Górski Institute of Plant Physiology, The Polish Academy of Sciences, Niezapominajek 21, 30-239 Krakow, Poland
3
Global Change Research Institute of the Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
4
Department of Genetics and Plant Breeding, Poznan University of Life Sciences, 11 Dojazd St., 60-632 Poznan, Poland
5
Department of Botany, Physiology and Plant Protection, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425 Krakow, Poland
6
Institute of Evolution, University of Haifa, Abba Khoushy Ave. 199, Haifa 3498838, Israel
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Elwira Sliwinska, Monika Rewers and Iwona Jedrzejczyk
Genes 2021, 12(5), 711; https://doi.org/10.3390/genes12050711
Received: 16 March 2021 / Revised: 5 May 2021 / Accepted: 7 May 2021 / Published: 10 May 2021
Wild barley is abundant, occupying large diversity of sites, ranging from the northern mesic Mediterranean meadows to the southern xeric deserts in Israel. This is also reflected in its wide phenotypic heterogeneity. We investigated the dynamics of DNA content changes in seed tissues in ten wild barley accessions that originated from an environmental gradient in Israel. The flow cytometric measurements were done from the time shortly after pollination up to the dry seeds. We show variation in mitotic cell cycle and endoreduplication dynamics in both diploid seed tissues (represented by seed maternal tissues and embryo) and in the triploid endosperm. We found that wild barley accessions collected at harsher xeric environmental conditions produce higher proportion of endoreduplicated nuclei in endosperm tissues. Also, a comparison of wild and cultivated barley strains revealed a higher endopolyploidy level in the endosperm of wild barley, that is accompanied by temporal changes in the timing of the major developmental phases. In summary, we present a new direction of research focusing on connecting spatiotemporal patterns of endoreduplication in barley seeds and possibly buffering for stress conditions. View Full-Text
Keywords: Endoreduplication; endosperm; Hordeum vulgare ubsp. spontaneum; seed development; super cycle value Endoreduplication; endosperm; Hordeum vulgare ubsp. spontaneum; seed development; super cycle value
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MDPI and ACS Style

Nowicka, A.; Sahu, P.P.; Kovacik, M.; Weigt, D.; Tokarz, B.; Krugman, T.; Pecinka, A. Endopolyploidy Variation in Wild Barley Seeds across Environmental Gradients in Israel. Genes 2021, 12, 711. https://doi.org/10.3390/genes12050711

AMA Style

Nowicka A, Sahu PP, Kovacik M, Weigt D, Tokarz B, Krugman T, Pecinka A. Endopolyploidy Variation in Wild Barley Seeds across Environmental Gradients in Israel. Genes. 2021; 12(5):711. https://doi.org/10.3390/genes12050711

Chicago/Turabian Style

Nowicka, Anna; Sahu, Pranav P.; Kovacik, Martin; Weigt, Dorota; Tokarz, Barbara; Krugman, Tamar; Pecinka, Ales. 2021. "Endopolyploidy Variation in Wild Barley Seeds across Environmental Gradients in Israel" Genes 12, no. 5: 711. https://doi.org/10.3390/genes12050711

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