Abstract
Abstract Tuber resistance can contribute to current management strategies against the potato tuber moth, Phthorimaea operculella Zeller (Lepidoptera: Gelechiidae), in field and stored potatoes. Wild potatoes represent a potential source of novel resistance traits against the moth. We assessed resistance in three wild potato species, Solanum multiinterruptum Bitt., Solanum sparsipilum (Bitt.) Juz. & Buk., and Solanum wittmackii Bitt. against neonate and developing tuber moth larvae. All three species had high levels of resistance but accessions of S. sparsipilum and S. wittmackii were significantly more resistant. Resistance in S. multiinterruptum was generally concentrated in the tuber periderm, whereas in S. sparsipilum and S. wittmackii resistance was mainly cortex‐based. Unidentified cortex‐resistance factors in all three species reduced survival and increased larval and pupal development times, but had no apparent effects on the pupal weights of survivors. A high proportion of larvae abandoned or died within tubers of S. wittmackii , which has particularly high levels of unidentified cortex‐based defenses. Resistance decreased in S. multiinterruptum and S. sparsipilum as tubers sprouted but was more stable in S. wittmackii . Periderm‐based resistance was more stable than cortex‐based resistance in S. multiinterruptum during sprouting. In contrast, cortex‐based resistance was stable in tubers of S. wittmackii as these sprouted, and resistance may have increased on some older sprouting tubers. Solanum multiinterruptum and S. sparsipilum are proposed as potential sources of resistance against the potato tuber moth.
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Claims 14
Claim · model-written summary
All three wild potato species had high levels of resistance to Phthorimaea operculella.
- Taxon
- wild potatot0
- Interactor
- Phthorimaea operculella
Phthorimaea operculellat0pest - Outcome
- resistancee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e1“All three species had high levels of resistance but accessions of S. sparsipilum and S. wittmackii were significantly more resistant”
Claim · model-written summary
Accessions of S. sparsipilum and S. wittmackii were significantly more resistant than the other species.
- Taxon
- wild potatot0
- Material
- accessions of S. sparsipilum and S. wittmackiie1
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- resistancee1
- Direction
- more resistante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e1“All three species had high levels of resistance but accessions of S. sparsipilum and S. wittmackii were significantly more resistant”
Claim · model-written summary
Resistance in S. multiinterruptum was generally concentrated in the tuber periderm.
- Taxon
- wild potatot0
- Material
- S. multiinterruptume2
- Organ / stage
- tuber periderme2
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- Resistancee2
- Qualifier
- generallye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e2“Resistance in S. multiinterruptum was generally concentrated in the tuber periderm”
Claim · model-written summary
In S. sparsipilum and S. wittmackii resistance was mainly cortex-based.
- Taxon
- wild potatot0
- Material
- S. sparsipilum and S. wittmackiie3
- Organ / stage
- cortexe3
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- resistancee3
- Qualifier
- mainlye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e3“whereas in S. sparsipilum and S. wittmackii resistance was mainly cortex”
Claim · model-written summary
Unidentified cortex-resistance factors in all three species reduced larval survival.
- Taxon
- wild potatot0
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- survivale4
- Direction
- reducede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e4“reduced survival and increased larval and pupal development times”
Claim · model-written summary
Unidentified cortex-resistance factors increased larval and pupal development times.
- Taxon
- wild potatot0
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- larval and pupal development timese4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e4“reduced survival and increased larval and pupal development times”
Claim · model-written summary
Unidentified cortex-resistance factors had no apparent effect on pupal weights of survivors.
- Taxon
- wild potatot0
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- pupal weights of survivorse5
- Direction
- no apparent effectse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e5“but had no apparent effects on the pupal weights of survivors”
Claim · model-written summary
A high proportion of larvae abandoned or died within tubers of S. wittmackii.
- Taxon
- wild potatot0
- Material
- S. wittmackiie6
- Organ / stage
- tuberse6
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- larvae abandoned or diede6
- Qualifier
- A high proportione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e6“A high proportion of larvae abandoned or died within tubers of S. wittmackii”
Claim · model-written summary
Resistance in S. multiinterruptum and S. sparsipilum decreased as tubers sprouted.
- Taxon
- wild potatot0
- Material
- S. multiinterruptum and S. sparsipilume7
- Treatment
- tubers sproutede7
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- Resistancee7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e7“Resistance decreased in S. multiinterruptum and S. sparsipilum as tubers sprouted but was more stable in S. wittmackii”
Claim · model-written summary
Resistance in S. wittmackii was more stable as tubers sprouted.
- Taxon
- wild potatot0
- Material
- S. wittmackiie7
- Treatment
- tubers sproutede7
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- Resistancee7
- Direction
- more stablee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e7“Resistance decreased in S. multiinterruptum and S. sparsipilum as tubers sprouted but was more stable in S. wittmackii”
Claim · model-written summary
Periderm-based resistance was more stable than cortex-based resistance in S. multiinterruptum during sprouting.
- Taxon
- wild potatot0
- Material
- S. multiinterruptume1
- Organ / stage
- Periderme1
- Treatment
- during sproutinge1
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- resistancee1
- Direction
- more stablee1
- Comparator
- cortexe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e1“Periderm‐based resistance was more stable than cortex‐based resistance in S. multiinterruptum during sprouting”
Claim · model-written summary
Cortex-based resistance was stable in S. wittmackii as tubers sprouted.
- Taxon
- wild potatot0
- Material
- S. wittmackiie1
- Organ / stage
- cortexe1
- Treatment
- as these sproutede1
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- resistancee1
- Direction
- stablee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e1“In contrast, cortex‐based resistance was stable in tubers of S. wittmackii as these sprouted”
Claim · model-written summary
Resistance may have increased on some older sprouting tubers.
- Taxon
- wild potatot0
- Treatment
- older sprouting tuberse1
- Interactor
- Phthorimaea operculellaPhthorimaea operculellat0pest
- Outcome
- resistancee1
- Direction
- may have increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e1“resistance may have increased on some older sprouting tubers”
Claim · model-written summary
Solanum multiinterruptum and S. sparsipilum are proposed as potential sources of resistance against the potato tuber moth.
Verbatim
t0“Variations in resistance against Phthorimaea operculella in wild potato tubers”
e1“Solanum multiinterruptum and S. sparsipilum are proposed as potential sources of resistance against the potato tuber moth”
The same questions in other papers
processing · Phthorimaea operculella · Solanum tuberosum (potato)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
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.