Abstract
Association mapping was used to investigate the genetic basis of variation within Brassica rapa, which is an important vegetable and oil crop. We analyzed the variation of phytate and phosphate levels in seeds and leaves and additional developmental and morphological traits in a set of diverse B. rapa accessions and tested association of these traits with AFLP markers. The analysis of population structure revealed four subgroups in the population. Trait values differed between these subgroups, thus defining associations between population structure and trait values, even for traits such as phytate and phosphate levels. Marker-trait associations were investigated both with and without taking population structure into account. One hundred and seventy markers were found to be associated with the observed traits without correction for population structure. Association analysis with correction for population structure led to the identification of 27 markers, 6 of which had known map positions; 3 of these were confirmed in additional QTL mapping studies.
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Claims 5
Claim · model-written summary
Trait values differed between the four population subgroups of Brassica rapa, including phytate and phosphate levels.
- Taxon
- Brassica rapa
Brassica rapae0 - Material
- four subgroupse2
- Outcome
- trait valuese1
- Qualifier
- even for traits such as phytate and phosphate levelse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Association mapping was used to investigate the genetic basis of variation within Brassica rapa”
e1“Trait values differed between these subgroups, thus defining associations between population structure and trait values, even for traits such as phytate and phosphate levels”
e2“The analysis of population structure revealed four subgroups in the population”
Claim · model-written summary
One hundred and seventy markers were associated with the observed traits of Brassica rapa without correction for population structure.
- Taxon
- Brassica rapaBrassica rapae0
- Outcome
- associated with the observed traitse3
- Value
- One hundred and seventye3
- Qualifier
- without correction for population structuree3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Association mapping was used to investigate the genetic basis of variation within Brassica rapa”
e3“One hundred and seventy markers were found to be associated with the observed traits without correction for population structure”
Claim · model-written summary
Association analysis with correction for population structure identified 27 markers in Brassica rapa.
- Taxon
- Brassica rapaBrassica rapae0
- Outcome
- identification of 27 markerse4
- Value
- 27e4
- Qualifier
- Association analysis with correction for population structuree4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Association mapping was used to investigate the genetic basis of variation within Brassica rapa”
e4“Association analysis with correction for population structure led to the identification of 27 markers, 6 of which had known map positions; 3 of these were confirmed in additional QTL mapping studies”
Claim · model-written summary
Six of the markers associated with traits in Brassica rapa had known map positions.
- Taxon
- Brassica rapaBrassica rapae0
- Outcome
- had known map positionse4
- Value
- 6e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Association mapping was used to investigate the genetic basis of variation within Brassica rapa”
e4“Association analysis with correction for population structure led to the identification of 27 markers, 6 of which had known map positions; 3 of these were confirmed in additional QTL mapping studies”
Claim · model-written summary
Three of the associated markers in Brassica rapa were confirmed in additional QTL mapping studies.
- Taxon
- Brassica rapaBrassica rapae0
- Outcome
- confirmed in additional QTL mapping studiese4
- Value
- 3e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Association mapping was used to investigate the genetic basis of variation within Brassica rapa”
e4“Association analysis with correction for population structure led to the identification of 27 markers, 6 of which had known map positions; 3 of these were confirmed in additional QTL mapping studies”