Wild barley shows a wider diversity in genes regulating heading date compared with cultivated barley
- 48 Downloads
Heading date (HD) is an important agronomic trait that influences plant adaptability to varying environment and, ultimately, grain yield. In this study, two doubled haploid (DH) populations were used to identify new QTL for HD. One of the DH populations is originated from a cross between an Australian malting barley cv. Franklin and a wild barley accession TAM407227 and the other one is from the cross between a Syrian wild barley SYR01 and an Australian malting barley cv. Gairdner. Using three times of sowing (TOS) differing in daylength and temperature, we investigated quantitative trait loci (QTL) controlling HD from both populations. Fourteen QTL were identified for HD from different populations and sowing dates. The expression of HD related genes varied with the TOS, suggesting a significant QTL × environment interaction. By comparing the positions of previously mapped HD genes and those of QTL detected in this population, we found that eleven of the fourteen QTL identified in this study were located at similar positions to those reported genes for HD. Among the three new potential QTL, one was located at 73.5 cM on chromosome 2H, explaining 19.2% and 4.6% HD of DH lines in spring and summer growing, respectively. The wild barley parent TAM407227 contributed the early maturity allele. HORVU2Hr1G088460 within the interval of QTL could be the candidate gene. The second new QTL was identified on chromosome 3H from a summer sowing trial and the third one on chromosome 4H affected HD of DH lines only under spring sowing condition. These new QTL identified will provide alternative genetic resources for plant breeders developing barley varieties with improved HD adaptability to varying environments.
KeywordsBarley Heading date Quantitative trait locus
The present study is funded by the Grains Research and Development Corporation (GRDC) of Australia (UT00030).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- Arifuzzaman M, Günal S, Bungartz A, Muzammil S, Afsharyan NP et al (2017) Correction: genetic mapping reveals broader role of Vrn-H3 gene in root and shoot development beyond heading in barley. PLOS ONE 12(5):e0177612Google Scholar
- Castro AJ, Cuesta-Marcos A, Hayes PM, Locatelli A, Macaulay M, Mastandrea N, Silveira M, Thomas WTB, Viega L (2017) The completely additive effects of two barley phenology-related genes (eps2S and sdw1) are explained by specific effects at different periods within the crop growth cycle. Plant Breed 136:663–670CrossRefGoogle Scholar
- Cattivelli L, Ceccarelli S, Romagosa I, Stanca M (2010) Abiotic stresses in barley: problems and solutions. In: Ullrich SE (ed) Barley: improvement, production, and uses. Wiley, New Jersey, pp 282–306Google Scholar
- Franckowiak J (2002) BGS 348, early maturity 5, Eam5. Barley Genet Newsl 32:109Google Scholar
- Franckowiak J, Konishi T (2002) Early maturity 6, Eam6. Barley Genet Newsl 32:86–87Google Scholar
- Franckowiak J, Lundqvist U, Konishi T, Gallagher L (1997) BGS 214, early maturity 8, eam8. Barley Genet Newsl 26:213–215Google Scholar
- Pachauri RK, Allen MR, Barros VR, Broome J, Cramer W, Christ R, Church JA, Clarke L, Dahe Q, Dasgupta P (2014) Climate change 2014: synthesis report. Contribution of working Groups I, II and III to the fifth assessment report of the Intergovernmental Panel on Climate Change. IPCCGoogle Scholar
- Sasani S, Hemming MN, Oliver SN, Greenup A, Tavakkol-Afshari R, Mahfoozi S, Poustini K, Sharifi H-R, Dennis ES, Peacock WJ (2009) The influence of vernalization and daylength on expression of flowering-time genes in the shoot apex and leaves of barley (2009) Hordeum vulgare. J Exp Bot 60:2169–2178PubMedPubMedCentralCrossRefGoogle Scholar
- Takahashi R, Yasuda S (1971) Barley genetics II. In: Proceedings of the second international barley genetics symposiumGoogle Scholar
- Van Ooijen JW (2006) JoinMapH 4.0, Software for the calculation of geneticlinkage maps. Plant research international, Wageningen, The NetherlandsGoogle Scholar
- Van Ooijen J, Kyazma B (2009) MapQTL® 6, Software for the mapping of quantitative trait in experiment populations of diploid species. Wageningen, Kyazma BVGoogle Scholar
- Van Ooijen J, Kyazma B (2011) MapQTL 6: software for the mapping of quantitative trait loci in experimental populations of diploid species. Kyazma BV, WageningenGoogle Scholar
- Wang G, Schmalenbach I, von Korff M, Léon J, Kilian B, Rode J, Pillen K (2010) Association of barley photoperiod and vernalization genes with QTLs for flowering time and agronomic traits in a BC2DH population and a set of wild barley introgression lines. Theor Appl Genet 120:1559–1574PubMedPubMedCentralCrossRefGoogle Scholar
- Yasuda S (1978) An earliness gene involved in Chinese native cultivars. Barley Genet Newsl 8:127–128Google Scholar