Abstract
Published studies have reported species-variance between profiles of Calvin-Benson cycle (CBC) intermediates, not only between C4 species and C3 species, but also within C3 species (Arrivault et al., 2019, Borghi et al. 2019). It was proposed that this variance reflects lineage-dependent changes in the balance between different reactions, or poising, of the CBC. These earlier studies investigated phylogenetically-unrelated C3 species. In the current study, CBC intermediates were profiled in five closely-related species from Solanum sect. lycopersicon subsect. Lycopersicum. Levels of individual CBC intermediates showed many significant differences. In a principal component analysis, whilst three species (Solanum lycopersicum, Solanum cheesmaniae, Solanum neorickii) overlapped, Solanum pimpinellifolium and especially Solanum pennellii grouped separately, and were at opposing ends of the distribution. When combined with published data, whilst the separation between Solanum species was retained, they formed a group that was separated from five other C3 species, as well as two C4 species. It is discussed that the observed variation in CBC metabolites profiles within Solanum, together with their separation from other C₃ species, supports the idea that CBC evolution is shaped by phylogenetic relatedness and, by implication, lineage-specific adaptation.
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Claims 6
Claim · model-written summary
Levels of individual Calvin-Benson cycle intermediates differed significantly among five Solanum species.
Verbatim
e1“CBC intermediates were profiled in five closely-related species from Solanum sect. lycopersicon subsect. Lycopersicum”
e2“Levels of individual CBC intermediates showed many significant differences”
Claim · model-written summary
Solanum pennellii grouped separately from the other species in principal component analysis.
- Taxon
- Solanum pennellii
Solanum pennelliie4 - Outcome
- grouped separatelye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Solanum pimpinellifolium and especially Solanum pennellii grouped separately, and were at opposing ends of the distribution”
Claim · model-written summary
Solanum pimpinellifolium grouped separately from the other species in principal component analysis.
- Taxon
- Solanum pimpinellifolium
Solanum pimpinellifoliume4 - Outcome
- grouped separatelye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Solanum pimpinellifolium and especially Solanum pennellii grouped separately, and were at opposing ends of the distribution”
Claim · model-written summary
Solanum lycopersicum, Solanum cheesmaniae and Solanum neorickii overlapped in principal component analysis.
- Taxon
- Solanum lycopersicum, Solanum cheesmaniae, Solanum neorickii
Solanum lycopersicumSolanum neorickii
Solanum cheesmaniaee3 - Outcome
- overlappede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“whilst three species (Solanum lycopersicum, Solanum cheesmaniae, Solanum neorickii) overlapped”
Claim · model-written summary
Solanum species formed a group separated from five other C3 species and two C4 species when published data were combined.
- Outcome
- formed a group that was separated from five other C3 species, as well as two C4 speciese5
SolanumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“When combined with published data, whilst the separation between Solanum species was retained, they formed a group that was separated from five other C3 species, as well as two C4 species”
Claim · model-written summary
Calvin-Benson cycle evolution is shaped by phylogenetic relatedness and lineage-specific adaptation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the observed variation in CBC metabolites profiles within Solanum, together with their separation from other C₃ species, supports the idea that CBC evolution is shaped by phylogenetic relatedness and, by implication, lineage-specific adaptation”