Mishra, Priyanka and Roggen, Adrian and Ljung, Karin and Albani, Maria C.
(2020).
Natural Variation in Adventitious Rooting in the Alpine Perennial Arabis alpina.
Plants. 9
, 184
, 1-9
[Journal article]
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Available under License Creative Commons Attribution. 1MB |
Abstract
Arctic alpine species follow a mixed clonal-sexual reproductive strategy based on the environmental conditions at flowering. Here, we explored the natural variation for adventitious root formation among genotypes of the alpine perennial Arabis alpina that show differences in flowering habit. We scored the presence of adventitious roots on the hypocotyl, main stem and axillary branches on plants growing in a long-day greenhouse. We also assessed natural variation for adventitious rooting in response to foliar auxin spray. In both experimental approaches, we did not detect a correlation between adventitious rooting and flowering habit. In the greenhouse, and without the application of synthetic auxin, the accession Wca showed higher propensity to produce adventitious roots on the main stem compared to the other accessions. The transcript accumulation of the A. alpina homologue of the auxin inducible GH3.3 gene (AaGH3.3) on stems correlated with the adventitious rooting phenotype of Wca. Synthetic auxin, 1-Naphthaleneacetic acid (1-NAA), enhanced the number of plants with adventitious roots on the main stem and axillary branches. A. alpina plants showed an age-, dosage- and genotype-dependent response to 1-NAA. Among the genotypes tested, the accession Dor was insensitive to auxin and Wca responded to auxin on axillary branches.
Authors/Creators: | Mishra, Priyanka and Roggen, Adrian and Ljung, Karin and Albani, Maria C. | ||||||
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Title: | Natural Variation in Adventitious Rooting in the Alpine Perennial Arabis alpina | ||||||
Year of publishing : | 2020 | ||||||
Volume: | 9 | ||||||
Article number: | 184 | ||||||
Number of Pages: | 9 | ||||||
Publisher: | MDPI | ||||||
ISSN: | 2223-7747 | ||||||
Language: | English | ||||||
Publication Type: | Journal article | ||||||
Article category: | Scientific peer reviewed | ||||||
Version: | Published version | ||||||
Copyright: | Creative Commons: Attribution 4.0 | ||||||
Full Text Status: | Public | ||||||
Subjects: | (A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Botany | ||||||
Keywords: | Arabis alpina, alpine, perennial, adventitious rooting, clonal growth, auxin | ||||||
URN:NBN: | urn:nbn:se:slu:epsilon-p-105229 | ||||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-105229 | ||||||
Additional ID: |
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ID Code: | 16915 | ||||||
Faculty: | S - Faculty of Forest Sciences | ||||||
Department: | (S) > Dept. of Forest Genetics and Plant Physiology | ||||||
Deposited By: | SLUpub Connector | ||||||
Deposited On: | 15 May 2020 11:41 | ||||||
Metadata Last Modified: | 15 Jan 2021 19:27 |
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