Abstract
Phosphorus Starvation Tolerance 1 in rice (OsPSTOL1, known as Phosphorus uptake 1, Pup1) is a receptor-like cytoplasmic protein kinase that confers tolerance to phosphorus deficiency. The OsPSTOL1 gene possesses a Ser/Thr kinase and shows high amino-acid sequence similarity with the leaf rust receptor-like kinase (OsLrK10). We hypothesise that the putative wheat genes TaPSTOL1 and TaLrK10 have a common ancestral origin and that putative TaPSTOL1 diverged recently, acquiring new structural modifications and biological functions in the process. In this study, we identified all putative TaPSTOL1 homeologs and examined the evolutionary relationship between TaPSTOL1 and TaLrK10 in Triticum species. Our results indicate that the putative TaPSTOL1 diverged recently without possessing the amino-terminal domain, which is a typical characteristic of TaLrK10. We observed numerous conversion tracts between these two genes, and the substitution pattern of randomly selected amino acids indicates that dynamic selection pressures acted on both genes. The putative TaPSTOL1 shows high nucleotide diversity compared to TaLrK10 within Triticum species. Further, a multiple-sequence analysis reveals that the third exon of TaLrK10 appears to have been duplicated and diverged as a putative single-exon-based TaPSTOL1 in bread wheat. Overall, our comparative analysis indicates that both TaPSTOL1 and TaLrK10 appear to have diverged from a common ancestor, acquiring distinct structural organisations and biological functions.
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Claims 7
Claim · model-written summary
Putative TaPSTOL1 homeologs were identified.
- Taxon
- Wheat
Triticum aestivumt0 - Gene
- TaPSTOL1e0
- Outcome
- all putative TaPSTOL1 homeologse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we identified all putative TaPSTOL1 homeologs”
t0“in Wheat”
Claim · model-written summary
Putative TaPSTOL1 diverged recently without the amino-terminal domain typical of TaLrK10.
- Taxon
- WheatTriticum aestivumt0
- Gene
- TaPSTOL1e0
- Outcome
- diverged recently without possessing the amino-terminal domaine0
- Comparator
- TaLrK10e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the putative TaPSTOL1 diverged recently without possessing the amino-terminal domain, which is a typical characteristic of TaLrK10”
t0“in Wheat”
Claim · model-written summary
Numerous conversion tracts occurred between TaPSTOL1 and TaLrK10.
TriticumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“numerous conversion tracts between these two genes”
e1“between TaPSTOL1 and TaLrK10 in Triticum species”
Claim · model-written summary
Substitution patterns indicate dynamic selection on both genes.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the substitution pattern of randomly selected amino acids indicates that dynamic selection pressures acted on both genes”
e1“between TaPSTOL1 and TaLrK10 in Triticum species”
Claim · model-written summary
Putative TaPSTOL1 had high nucleotide diversity relative to TaLrK10.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The putative TaPSTOL1 shows high nucleotide diversity compared to TaLrK10 within Triticum species”
Claim · model-written summary
The third exon of TaLrK10 appears duplicated and diverged as single-exon TaPSTOL1 in bread wheat.
- Taxon
- bread wheatTriticum aestivume0
- Gene
- TaLrK10e0
- Outcome
- duplicated and diverged as a putative single-exon-based TaPSTOL1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the third exon of TaLrK10 appears to have been duplicated and diverged as a putative single-exon-based TaPSTOL1 in bread wheat”
Claim · model-written summary
TaPSTOL1 and TaLrK10 appear to share a common ancestor and have distinct structural organizations and functions.
- Taxon
- WheatTriticum aestivumt0
- Gene
- TaPSTOL1e0
- Outcome
- diverged from a common ancestor, acquiring distinct structural organisations and biological functionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both TaPSTOL1 and TaLrK10 appear to have diverged from a common ancestor, acquiring distinct structural organisations and biological functions”
t0“in Wheat”