Abstract
The role of Wx alleles in amylose biosynthesis is well-established; however, how Wx deficiency triggers hierarchical changes in starch structure and consequently affects noodle quality is still poorly understood. Here, analysis of near-isogenic lines (NILs) revealed that Wx deficiency preferentially increases the proportion of short amylopectin chains (DP 6-24) and shifts granule size distribution toward smaller B-type granules. Although complete Wx deletion (BBB genotype) enhanced starch crystallinity and enthalpy, it concomitantly led to an undesirable decrease in paste viscosity. In contrast, partial deletion (e.g., ABA) yielded noodles with a superior soft-yet-springy texture, marked by significantly improved springiness and chewiness without excessive hardness. This optimal texture is attributed to a higher proportion of short amylopectin chains (DP 6-24) coupled with a lower proportion of long amylose chains (DP > 500). This work demonstrates targeted manipulation of Wx alleles can engineer starch multi-level structure for specific end-use quality, moving beyond conventional amylose-centric breeding strategies.
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Claims 8
Claim · model-written summary
Wx deficiency preferentially increases the proportion of short amylopectin chains (DP 6-24) in wheat starch.
- Taxon
- wheat
Triticum aestivumt0 - Material
- near-isogenic lines (NILs)e1
- Treatment
- Wx deficiencye2
- Outcome
- proportion of short amylopectin chains (DP 6-24)e2
- Direction
- increasese2
- Qualifier
- preferentiallye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Wx deficiency preferentially increases the proportion of short amylopectin chains (DP 6-24) and shifts granule size distribution toward smaller B-type granules”
e1“analysis of near-isogenic lines (NILs) revealed”
t0“wheat starch structure”
Claim · model-written summary
Wx deficiency shifts wheat granule size distribution toward smaller B-type granules.
- Taxon
- wheatTriticum aestivumt0
- Material
- near-isogenic lines (NILs)e1
- Treatment
- Wx deficiencye2
- Outcome
- granule size distributione2
- Direction
- shiftse2
- Qualifier
- toward smaller B-type granulese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Wx deficiency preferentially increases the proportion of short amylopectin chains (DP 6-24) and shifts granule size distribution toward smaller B-type granules”
e1“analysis of near-isogenic lines (NILs) revealed”
t0“wheat starch structure”
Claim · model-written summary
Complete Wx deletion (BBB genotype) enhanced starch crystallinity and enthalpy in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- complete Wx deletion (BBB genotype)e3
- Outcome
- starch crystallinity and enthalpye3
- Direction
- enhancede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“complete Wx deletion (BBB genotype) enhanced starch crystallinity and enthalpy”
t0“wheat starch structure”
Claim · model-written summary
Complete Wx deletion (BBB genotype) led to an undesirable decrease in wheat paste viscosity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- complete Wx deletion (BBB genotype)e3
- Outcome
- paste viscositye4
- Direction
- decreasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“complete Wx deletion (BBB genotype) enhanced starch crystallinity and enthalpy”
e4“it concomitantly led to an undesirable decrease in paste viscosity”
t0“wheat starch structure”
Claim · model-written summary
Partial Wx deletion (ABA) yielded noodles with significantly improved springiness and chewiness.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- partial deletion (e.g., ABA)e5
- Outcome
- springiness and chewinesse5
- Direction
- improvede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“partial deletion (e.g., ABA) yielded noodles with a superior soft-yet-springy texture, marked by significantly improved springiness and chewiness without excessive hardness”
t0“wheat starch structure”
Claim · model-written summary
Partial Wx deletion (ABA) gave noodles without excessive hardness.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- partial deletion (e.g., ABA)e5
- Outcome
- hardnesse5
- Direction
- no_changeinferrede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“partial deletion (e.g., ABA) yielded noodles with a superior soft-yet-springy texture, marked by significantly improved springiness and chewiness without excessive hardness”
t0“wheat starch structure”
Claim · model-written summary
The optimal soft-yet-springy noodle texture is attributed to a higher proportion of short amylopectin chains together with a lower proportion of long amylose chains.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- optimal texturee6
- Qualifier
- a higher proportion of short amylopectin chains (DP 6-24) coupled with a lower proportion of long amylose chains (DP > 500)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“This optimal texture is attributed to a higher proportion of short amylopectin chains (DP 6-24) coupled with a lower proportion of long amylose chains (DP > 500)”
t0“wheat starch structure”
Claim · model-written summary
Targeted manipulation of Wx alleles can engineer wheat starch multi-level structure for specific end-use quality.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- targeted manipulation of Wx allelese7
- Outcome
- starch multi-level structuree7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“This work demonstrates targeted manipulation of Wx alleles can engineer starch multi-level structure for specific end-use quality”
t0“wheat starch structure”
The same questions in other papers
(+)-abscisic acid · quality: postharvest · Triticum aestivum (wheat)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
loss of function · quality: postharvest · Triticum aestivum (wheat)Positive and negative results
7 in the opposite direction
- negative
- no effect
- no effect
4 papers more in this group
See all 8 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.