ANALYSIS OF PHENOLOGY EFFECTS ON BARLEY ADAPTATION TO CONTRASTING ENVIRONMENTS USING AN ELITE POPULATION

ANALYSIS OF PHENOLOGY EFFECTS ON BARLEY ADAPTATION TO CONTRASTING ENVIRONMENTS USING AN ELITE POPULATION | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 19 May 2025 V1 Latest version Share on ANALYSIS OF PHENOLOGY EFFECTS ON BARLEY ADAPTATION TO CONTRASTING ENVIRONMENTS USING AN ELITE POPULATION Authors : Maximiliano Verocai 0000-0002-8102-8982 , Lucia Gutierrez 0000-0002-2957-3086 , Andrés Locatelli 0000-0002-6443-3900 , Silvina Baraibar , Lorena Cammarota , Fernanda Pardo , and Ariel Castro [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.174768413.35868487/v1 179 views 107 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Phenological regulation is a key determinant of barley adaptation. In South America, late planting often exposes barley to high temperatures, limiting the adaptation of late-flowering European germplasm introduced for yield and malting quality. To investigate phenology and yield-related traits under contrasting environments, a barley population (developed from five elite genotypes) was extensively phenotyped: eighteen traits at four sites, under both normal and late sowing dates over four years. The population was genotyped using the Illumina barley 50K iSelect array. GWAS identified 61 QTL, 43 of which clustered in six hotspots close to PPD-H1 (2H), HvFT2 (3H), Vrn-H3 (7H), and three other regions on chromosomes 1H, 6H and 7H. Phenology did not affect yield on early planting dates, but was negatively correlated to yield on late plantings. Hotspots on 1H and 3H determined yield-related traits on all sowing dates, contributing to yield stability across environments. Hotspots on 6H and 7H affected yield-related and phenological traits only in normal sowing dates, suggesting the potential for increasing yield in optimal environments without penalties in late sowing dates. PPD-H1 affected phenology in late sowing environments, where sensitive alleles (from local parents) shortened phenological phases but did not affect early sowings. The results highlight the importance of phenology on late plantings and suggest that photoperiod sensitivity should provide stability under diverse environments with no trade-off under normal conditions. The lack of crossover interaction of favorable alleles suggests the potential of strategies for combining specific and general adaptation. Supplementary Material File (verocai et al.docx) Download 1.20 MB Information & Authors Information Version history V1 Version 1 19 May 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords barley crop genetics plant and environment interactions Authors Affiliations Maximiliano Verocai 0000-0002-8102-8982 Universidad de la República Uruguay View all articles by this author Lucia Gutierrez 0000-0002-2957-3086 University of Wisconsin Madison View all articles by this author Andrés Locatelli 0000-0002-6443-3900 CENUR Litoral Norte–Polo Agroalimentario, Estación Experimental, “Dr. Mario A. Cassinoni”, Facultad de Agronomía, Universidad de la República View all articles by this author Silvina Baraibar Instituto Nacional de Investigación Agropecuaria La Estanzuela View all articles by this author Lorena Cammarota Maltería Uruguay S.A. View all articles by this author Fernanda Pardo Maltería Oriental S.A. View all articles by this author Ariel Castro [email protected] Universidad de la Republica Uruguay View all articles by this author Metrics & Citations Metrics Article Usage 179 views 107 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Maximiliano Verocai, Lucia Gutierrez, Andrés Locatelli, et al. ANALYSIS OF PHENOLOGY EFFECTS ON BARLEY ADAPTATION TO CONTRASTING ENVIRONMENTS USING AN ELITE POPULATION. Authorea . 19 May 2025. DOI: https://doi.org/10.22541/au.174768413.35868487/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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