Photoperiod sensitivity affects flowering duration in wheat
| العنوان: | Photoperiod sensitivity affects flowering duration in wheat |
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| المؤلفون: | Luzie U. Wingen, Hannah Jones, Abdulaziz Alhomedhi, Bastiaan Brak, Simon Griffiths, Michael Gooding, Martin Lukac, Maite Martínez-Eixarch |
| المساهمون: | Producció Vegetal, Cultius Extensius Sostenibles |
| المصدر: | The Journal of Agricultural Science. 155:32-43 |
| بيانات النشر: | Cambridge University Press (CUP), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, photoperiodism, Pollination, fungi, food and beverages, Biology, 01 natural sciences, Heat stress, 03 medical and health sciences, 030104 developmental biology, Agronomy, Anthesis, Duration (music), Genetics, Increased stress, Day length, Animal Science and Zoology, Agronomy and Crop Science, 010606 plant biology & botany |
| الوصف: | SUMMARYFlowering and successful pollination in wheat are key determinants of both quantity and quality of grain. Bread wheat line ‘Paragon’, introgressed with single or multiple daylength insensitivity alleles was used to dissect the effects on the timing and duration of flowering within a hierarchical plant architecture. Flowering of wheat plants was observed in a series of pot-based and field experiments. Ppd-D1a was the most potent known allele affecting the timing of flowering, requiring the least thermal time to flowering across all experiments. The duration of flowering for individual lines was dominated by the shift in the start of flowering in later tillers and the number of tillers per plant, rather than variation in flowering duration of individual spikes. There was a strong relationship between flowering duration and the start of flowering with the earliest lines flowering for the longest. The greatest flowering overlap between tillers was recorded for the Ppd-1b. Across all lines, a warmer environment significantly reduced the duration of flowering and the influence of Ppd-1a alleles on the start of flowering. These findings provide evidence of pleiotropic effects of the Ppd-1a alleles, and have direct implications for breeding for increased stress resilient wheat varieties. |
| وصف الملف: | application/pdf |
| تدمد: | 1469-5146 0021-8596 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03c270fb932c47df4ae0afbeae048639Test https://doi.org/10.1017/s0021859616000125Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....03c270fb932c47df4ae0afbeae048639 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14695146 00218596 |
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