Abstract
High temperatures during grain filling can reduce the yield of wheat and affect its grain protein concentration. The Gpc-B1 locus of wheat also affects grain protein concentration, but it is not known whether its effects interact with those of heat. The aim of this study was to investigate the effects of high temperature in lines with and without functional (high-protein) alleles at Gpc-B1. A highly replicated experiment was conducted in a glasshouse under control conditions (24/18°C, 14/10h day/night), with half of the plants of each line or cultivar put into a heat chamber (37/27°C, 14/10h day/night) at 15 days after anthesis for 3 days. Backcross derivatives with the Gpc-B1 introgression segment differed from their recurrent parents more than those without that segment. In some respects, the effects of the Gpc-B1 introgression were similar to those of the heat treatment: both could accelerate peduncle senescence, increase grain protein content and increase the percentage of unextractable polymeric protein. Unlike the heat treatment, Gpc-B1 did not reduce grain weight, indicating that factors that hasten senescence do not necessarily limit grain size. The presence of the Gpc-B1 segment did not exacerbate the effects of heat stress on any trait.
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Claims 10
Claim · model-written summary
Backcross derivatives with Gpc-B1 introgression differed more from recurrent parents than derivatives without it.
- Taxon
- bread wheat
Triticum aestivumt0 - Material
- Backcross derivativese0
- Gene
- Gpc-B1e0
- Outcome
- differede0
- Comparator
- recurrent parentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Backcross derivatives with the Gpc-B1 introgression segment differed from their recurrent parents more than those without that segment.”
t0“bread wheat”
Claim · model-written summary
Gpc-B1 introgression accelerated peduncle senescence.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- Gpc-B1 introgressione0
- Gene
- Gpc-B1e0
- Outcome
- peduncle senescencee0
- Direction
- acceleratee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of the Gpc-B1 introgression were similar to those of the heat treatment: both could accelerate peduncle senescence”
t0“bread wheat”
Claim · model-written summary
Heat treatment accelerated peduncle senescence.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- heat treatmente0
- Outcome
- peduncle senescencee0
- Direction
- acceleratee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of the Gpc-B1 introgression were similar to those of the heat treatment: both could accelerate peduncle senescence”
t0“bread wheat”
Claim · model-written summary
Gpc-B1 introgression increased grain protein content.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- Gpc-B1 introgressione0
- Gene
- Gpc-B1e0
- Outcome
- grain protein contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of the Gpc-B1 introgression were similar to those of the heat treatment: both could accelerate peduncle senescence, increase grain protein content and increase the percentage of unextractable polymeric protein”
t0“bread wheat”
Claim · model-written summary
Heat treatment increased grain protein content.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- heat treatmente0
- Outcome
- grain protein contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of the Gpc-B1 introgression were similar to those of the heat treatment: both could accelerate peduncle senescence, increase grain protein content and increase the percentage of unextractable polymeric protein”
t0“bread wheat”
Claim · model-written summary
Gpc-B1 introgression increased the percentage of unextractable polymeric protein.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- Gpc-B1 introgressione0
- Gene
- Gpc-B1e0
- Outcome
- percentage of unextractable polymeric proteine0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of the Gpc-B1 introgression were similar to those of the heat treatment: both could accelerate peduncle senescence, increase grain protein content and increase the percentage of unextractable polymeric protein”
t0“bread wheat”
Claim · model-written summary
Heat treatment increased the percentage of unextractable polymeric protein.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- heat treatmente0
- Outcome
- percentage of unextractable polymeric proteine0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of the Gpc-B1 introgression were similar to those of the heat treatment: both could accelerate peduncle senescence, increase grain protein content and increase the percentage of unextractable polymeric protein”
t0“bread wheat”
Claim · model-written summary
Gpc-B1 did not reduce grain weight.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- Gpc-B1e0
- Gene
- Gpc-B1e0
- Outcome
- grain weighte0
- Direction
- did not reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unlike the heat treatment, Gpc-B1 did not reduce grain weight”
t0“bread wheat”
Claim · model-written summary
Heat treatment reduced grain weight.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- heat treatmente0
- Outcome
- grain weighte0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unlike the heat treatment, Gpc-B1 did not reduce grain weight”
t0“bread wheat”
Claim · model-written summary
Gpc-B1 segment did not exacerbate heat effects on any trait.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- Gpc-B1 segmente0
- Gene
- Gpc-B1e0
- Outcome
- effects of heat stress on any traite0
- Direction
- did not exacerbatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of the Gpc-B1 segment did not exacerbate the effects of heat stress on any trait.”
t0“bread wheat”
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