Abstract
Abstract Camelina is being developed as a winter oilseed cover crop. Early flowering and maturity are desired traits in camelina to allow for relay planting or seeding of a summer annual following camelina harvest. Here we report that while all winter biotype accessions of camelina have a functional allele of FLOWERING LOCUS C (FLC) on chromosome 20, there are also at least 20 previously characterized spring biotype accessions that have a functional FLC allele at this locus. We observed this by analyzing 76 of 222 camelina accessions that were resequenced by Li et al., (2020) as well as 11 additional accessions resequenced for this analysis. This discovery will inform marker assisted selection efforts that are underway to increase genetic variation in the genetically narrow base of winter camelina germplasm. Furthermore, we optimized a KASP genotyping approach that effectively differentiates winter camelina accessions from the spring accessions based upon a SNV in the FLC gene on chromosome 20. We also identified a facultative winter biotype accession of camelina (PI650163- 1) that has demonstrated two years of winter-hardiness and has flowered at least a week earlier than the common winter accession, ‘Joelle’. A cross between Camelina sativa accessions PI 650168 (n=19) and PI 650163-1 (n=20) produced viable progeny to the current F3 generation. Early maturing winter-hardy camelina will reduce stress on the subsequent soybean crop and improve cropping system yields. A principal components analysis of genetic diversity showed that three replications of this facultative winter accession clustered near the group of winter accessions.
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Claims 7
Claim · model-written summary
All winter-biotype camelina accessions had a functional FLC allele on chromosome 20.
CamelinaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all winter biotype accessions of camelina have a functional allele of FLOWERING LOCUS C (FLC) on chromosome 20”
Claim · model-written summary
At least 20 previously characterized spring-biotype camelina accessions also had a functional FLC allele.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at least 20 previously characterized spring biotype accessions that have a functional FLC allele at this locus”
t0“Early flowering and maturity are desired traits in camelina”
Claim · model-written summary
A KASP genotyping approach effectively differentiated winter from spring camelina accessions using an FLC SNV.
- Gene
- FLCe0
- Outcome
- effectively differentiates winter camelina accessions from the spring accessionse0
- Comparator
- spring accessionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“optimized a KASP genotyping approach that effectively differentiates winter camelina accessions from the spring accessions based upon a SNV in the FLC gene on chromosome 20”
Claim · model-written summary
Camelina accession PI650163- 1 demonstrated winter hardiness over two years.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“facultative winter biotype accession of camelina (PI650163- 1) that has demonstrated two years of winter-hardiness”
Claim · model-written summary
Camelina accession PI650163- 1 flowered at least a week earlier than Joelle.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“camelina (PI650163- 1) that has demonstrated two years of winter-hardiness and has flowered at least a week earlier than the common winter accession, ‘Joelle’”
Claim · model-written summary
The cross of PI 650168 and PI 650163-1 produced viable progeny through F3.
- Taxon
- Camelina sativa
.jpg?width=60)
Camelina sativae0 - Material
- PI 650168e0
- Organ / stage
- F3 generatione0
- Outcome
- viable progenye0
- Comparator
- PI 650163-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“A cross between Camelina sativa accessions PI 650168 (n=19) and PI 650163-1 (n=20) produced viable progeny to the current F3 generation”
Claim · model-written summary
The facultative winter camelina accession clustered near winter accessions in principal components analysis.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three replications of this facultative winter accession clustered near the group of winter accessions”
t0“Early flowering and maturity are desired traits in camelina”