Abstract
ABSTRACT Tolerance to low P soils is a desirable trait in common bean ( Phaseolus vulgaris L.) cultivars grown in acid‐weathered soils. Genetic variability in response to P‐deficient soils exists in the Andean gene pool. G19833, a low P–tolerant indeterminate Andean landrace, has been evaluated for quantitative trait loci (QTL) and tolerance to low P in combination with Mesoamerican parents. Our goal was to expand our understanding of phenotypic traits and QTL from G19833 expressed in an Andean background. An F 5:7 recombinant inbred line (RIL) population developed from two Andean bean genotypes, G19833 and AND696, a determinate line susceptible to low P soils, was examined under low and high soil P levels in replicated field trials. Phosphorus uptake was reduced by 70% and yield by 60% in low P compared to high P treatments. A linkage map was developed with 11 linkage groups and a total length of 1105 cM. Quantitative trait loci for root growth, seed yield, seed P content, and P use efficiency colocalized near the fin gene on linkage group B1. Quantitative trait loci for root growth traits, seed yield, and P uptake colocalized on B11. Quantitative trait loci for root length density (cm cm −3 ) and root surface area (cm 2 ) did not colocalize with QTL for P uptake. This study indicates that root traits did not play an important role in tolerance to low P soil in an Andean × Andean cross, contrary to previous results with the same P‐efficient Andean parent (G19833) crossed to a Mesoamerican bean genotype.
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Claims 7
Claim · model-written summary
Low soil phosphorus reduced phosphorus uptake by 70%.
- Taxon
- common bean
Phaseolus vulgarise1 - Treatment
- low Pe0
- Outcome
- Phosphorus uptakee0
- Direction
- reducede0
- Value
- 70%e0
- Comparator
- high Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus uptake was reduced by 70% and yield by 60% in low P compared to high P treatments”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Low soil phosphorus reduced yield by 60%.
- Taxon
- common beanPhaseolus vulgarise1
- Treatment
- low Pe0
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 60%e0
- Comparator
- high Pe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus uptake was reduced by 70% and yield by 60% in low P compared to high P treatments”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
A linkage map comprised 11 linkage groups spanning 1105 cM.
- Taxon
- common beanPhaseolus vulgarise1
- Outcome
- linkage mape0
- Value
- 1105 cMe0
- Qualifier
- 11 linkage groupse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A linkage map was developed with 11 linkage groups and a total length of 1105 cM”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
QTL for root growth, seed yield, seed P and P use efficiency colocalized near fin on B1.
- Taxon
- common beanPhaseolus vulgarise1
- Gene
- fin genee0
- Outcome
- Quantitative trait loci for root growth, seed yield, seed P content, and P use efficiency colocalizede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quantitative trait loci for root growth, seed yield, seed P content, and P use efficiency colocalized near the fin gene on linkage group B1”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
QTL for root growth, seed yield and P uptake colocalized on B11.
- Taxon
- common beanPhaseolus vulgarise1
- Outcome
- Quantitative trait loci for root growth traits, seed yield, and P uptake colocalized on B11e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quantitative trait loci for root growth traits, seed yield, and P uptake colocalized on B11”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
QTL for root length density and root surface area did not colocalize with P uptake QTL.
- Taxon
- common beanPhaseolus vulgarise1
- Outcome
- did not colocalize with QTL for P uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quantitative trait loci for root length density (cm cm −3 ) and root surface area (cm 2 ) did not colocalize with QTL for P uptake”
e1“common bean ( Phaseolus vulgaris L.)”
Claim · model-written summary
Root traits were interpreted as unimportant to low-P tolerance in this Andean cross.
- Taxon
- common beanPhaseolus vulgarise1
- Outcome
- tolerance to low P soile0
- Qualifier
- Andean × Andean crosse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root traits did not play an important role in tolerance to low P soil in an Andean × Andean cross”
e1“common bean ( Phaseolus vulgaris L.)”
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See all 118 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.