Abstract
Tuber number is an essential factor determining yield and commodity in potato production. The initiation number has long been considered the sole determinant of the final total tuber number. In this study, we observed that tuber numbers at harvest were lower than at the tuber bulking stage; some formed tubers that were smaller than 3 cm degraded during development. Carbohydrate metabolism plays a crucial role in tuber degradation by coordinating the source-sink relationship. The contents of starch and sucrose, and the C:N ratio, are dramatically reduced in degradating tubers. Transcriptomic study showed that "carbohydrate metabolic processes" are Gene Ontology (GO) terms associated with tuber degradation. A polysaccharide degradation-related gene, LOC102601831, and a sugar transport gene, LOC102587850 (SWEET6a), are dramatically up-regulated in degradating tubers according to transcriptomic analysis, as validated by qRT-PCT. The terms "peptidase inhibitor activity" and "hydrolase activity" refer to the changes in molecular functions that degradating tubers exhibit. Nitrogen supplementation during potato development alleviates tuber degradation to a certain degree. This study provides novel insight into potato tuber development and possible management strategies for improving potato cultivation.
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Claims 9
Claim · model-written summary
Tuber numbers at harvest were lower than at the tuber bulking stage
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- tuber numberse1
- Direction
- lowere1
- Comparator
- the tuber bulking stagee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e1“we observed that tuber numbers at harvest were lower than at the tuber bulking stage”
Claim · model-written summary
Tubers smaller than 3 cm degraded during development
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- formed tuberse2
- Direction
- degradede2
- Qualifier
- smaller than 3 cme2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e2“some formed tubers that were smaller than 3 cm degraded during development”
Claim · model-written summary
Carbohydrate metabolism explains tuber degradation by coordinating the source-sink relationship
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- tuber degradatione3
- Qualifier
- Carbohydrate metabolisme3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e3“Carbohydrate metabolism plays a crucial role in tuber degradation by coordinating the source-sink relationship”
Claim · model-written summary
Starch and sucrose contents and the C:N ratio are reduced in degrading tubers
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- degradating tuberse4
- Outcome
- contents of starch and sucrose, and the C:N ratioe4
- Direction
- reducede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e4“The contents of starch and sucrose, and the C:N ratio, are dramatically reduced in degradating tubers”
Claim · model-written summary
Carbohydrate metabolic processes are Gene Ontology terms associated with tuber degradation
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- carbohydrate metabolic processese5
- Qualifier
- Gene Ontology (GO) terms associated with tuber degradatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e5“Transcriptomic study showed that "carbohydrate metabolic processes" are Gene Ontology (GO) terms associated with tuber degradation”
Claim · model-written summary
Polysaccharide degradation-related gene LOC102601831 is up-regulated in degrading tubers
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- degradating tuberse6
- Gene
- LOC102601831e6
- Outcome
- up-regulated in degradating tuberse6
- Direction
- up-regulatede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e6“A polysaccharide degradation-related gene, LOC102601831, and a sugar transport gene, LOC102587850 (SWEET6a), are dramatically up-regulated in degradating tubers according to transcriptomic analysis, as validated by qRT-PCT”
Claim · model-written summary
Sugar transport gene LOC102587850 (SWEET6a) is up-regulated in degrading tubers
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- degradating tuberse6
- Gene
- LOC102587850 (SWEET6a)e6
- Outcome
- up-regulated in degradating tuberse6
- Direction
- up-regulatede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e6“A polysaccharide degradation-related gene, LOC102601831, and a sugar transport gene, LOC102587850 (SWEET6a), are dramatically up-regulated in degradating tubers according to transcriptomic analysis, as validated by qRT-PCT”
Claim · model-written summary
Peptidase inhibitor activity and hydrolase activity change in the molecular functions of degrading tubers
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- degradating tuberse7
- Outcome
- molecular functionse7
- Direction
- changese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e7“The terms "peptidase inhibitor activity" and "hydrolase activity" refer to the changes in molecular functions that degradating tubers exhibit”
Claim · model-written summary
Nitrogen supplementation during potato development alleviates tuber degradation to a certain degree
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Nitrogen supplementation during potato developmente0
- Outcome
- tuber degradatione0
- Direction
- alleviatese0
- Qualifier
- to a certain degreee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato tuber degradation”
e0“Nitrogen supplementation during potato development alleviates tuber degradation to a certain degree”