The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade‐off between grain size and grain number
Why this research Matters Grain size is potentially yield determining in wheat, controlled by the ubiquitin pathway and negatively regulated by ubiquitin receptor DA1. We analyzed whether increased thousand grain weight in wheat da1 mutant is translated into higher grain yield and whether additional...
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Wiley
2021-04-01
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| Series: | Plant-Environment Interactions |
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| Online Access: | https://doi.org/10.1002/pei3.10041 |
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doaj-76e90907f0274b4a8647e99a5ab0cdcf2021-06-20T04:20:36ZengWileyPlant-Environment Interactions2575-62652021-04-0122617310.1002/pei3.10041The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade‐off between grain size and grain numberIsabel Mora‐Ramirez0Heiko Weichert1Nicolaus vonWirén2Claus Frohberg3Stefanie deBodt4Ralf‐Christian Schmidt5Hans Weber6Leibniz Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) Gatersleben GermanyLeibniz Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) Gatersleben GermanyLeibniz Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) Gatersleben GermanyBASF Innovation Center Gent Gent BelgiumBASF Innovation Center Gent Gent BelgiumBASF Innovation Center Gent Gent BelgiumLeibniz Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) Gatersleben GermanyWhy this research Matters Grain size is potentially yield determining in wheat, controlled by the ubiquitin pathway and negatively regulated by ubiquitin receptor DA1. We analyzed whether increased thousand grain weight in wheat da1 mutant is translated into higher grain yield and whether additional carbon provided by elevated (e)CO2 can be better used by the da1, displaying higher grain sink strength and size. Yield‐related, biomass, grain quality traits, and grain dimensions were analyzed by two‐factorial mixed‐model analysis, regarding genotype and eCO2. da1 increased grain size but reduced spikes and grains per plant, grains per spike, and spikelets per spike, independent of eCO2 treatment, leaving total grain yield unchanged. eCO2 increased yield and grain number additively and independently of da1 but did not overcome the trade‐off between grain size and number observed for da1. eCO2 but not da1 impaired grain quality, strongly decreasing concentrations of several macroelement and microelement. In conclusion, intrinsic stimulation of grain sink strength and grain size, achieved by da1, is not benefitting total yield unless trade‐offs between grain size and numbers can be overcome. The results reveal interactions of yield components in da1‐wheat under ambient and eCO2, thereby uncovering limitations enhancing wheat yield potential.https://doi.org/10.1002/pei3.10041CO2 fertilizationDA1‐genegrain numbergrain qualitygrain sizesink strength |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Isabel Mora‐Ramirez Heiko Weichert Nicolaus vonWirén Claus Frohberg Stefanie deBodt Ralf‐Christian Schmidt Hans Weber |
| spellingShingle |
Isabel Mora‐Ramirez Heiko Weichert Nicolaus vonWirén Claus Frohberg Stefanie deBodt Ralf‐Christian Schmidt Hans Weber The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade‐off between grain size and grain number Plant-Environment Interactions CO2 fertilization DA1‐gene grain number grain quality grain size sink strength |
| author_facet |
Isabel Mora‐Ramirez Heiko Weichert Nicolaus vonWirén Claus Frohberg Stefanie deBodt Ralf‐Christian Schmidt Hans Weber |
| author_sort |
Isabel Mora‐Ramirez |
| title |
The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade‐off between grain size and grain number |
| title_short |
The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade‐off between grain size and grain number |
| title_full |
The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade‐off between grain size and grain number |
| title_fullStr |
The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade‐off between grain size and grain number |
| title_full_unstemmed |
The da1 mutation in wheat increases grain size under ambient and elevated CO2 but not grain yield due to trade‐off between grain size and grain number |
| title_sort |
da1 mutation in wheat increases grain size under ambient and elevated co2 but not grain yield due to trade‐off between grain size and grain number |
| publisher |
Wiley |
| series |
Plant-Environment Interactions |
| issn |
2575-6265 |
| publishDate |
2021-04-01 |
| description |
Why this research Matters Grain size is potentially yield determining in wheat, controlled by the ubiquitin pathway and negatively regulated by ubiquitin receptor DA1. We analyzed whether increased thousand grain weight in wheat da1 mutant is translated into higher grain yield and whether additional carbon provided by elevated (e)CO2 can be better used by the da1, displaying higher grain sink strength and size. Yield‐related, biomass, grain quality traits, and grain dimensions were analyzed by two‐factorial mixed‐model analysis, regarding genotype and eCO2. da1 increased grain size but reduced spikes and grains per plant, grains per spike, and spikelets per spike, independent of eCO2 treatment, leaving total grain yield unchanged. eCO2 increased yield and grain number additively and independently of da1 but did not overcome the trade‐off between grain size and number observed for da1. eCO2 but not da1 impaired grain quality, strongly decreasing concentrations of several macroelement and microelement. In conclusion, intrinsic stimulation of grain sink strength and grain size, achieved by da1, is not benefitting total yield unless trade‐offs between grain size and numbers can be overcome. The results reveal interactions of yield components in da1‐wheat under ambient and eCO2, thereby uncovering limitations enhancing wheat yield potential. |
| topic |
CO2 fertilization DA1‐gene grain number grain quality grain size sink strength |
| url |
https://doi.org/10.1002/pei3.10041 |
| work_keys_str_mv |
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