Abstract
C23011,containing a single introgressed segment of chromosome 8,was derived from the CSSL population with Nipponbare as the donor and Guanglu′ai 4 as the recurrent parent.In normal long-day conditions,its heading date was 14.1 d shorter than that of Nipponbare.Under short-day conditions,however,no obvious difference in heading date between C23011 and Nipponbare was observed.A segregation population derived from a BC4F2 individual with the heterozygous target segment was used for genetic analysis and gene mapping.The ratio of late heading plants to early heading plants showed a 3∶1 frequency distribution,suggesting that the heading date variation was controlled by a single major QTL,which was named qHd8.1.A physical map was constructed encompassing the qHd8.1 locus and the locus was delimited to a 59.94 kb interval between markers S8111 and S849 on BAC clone AP005164 using 1628 individuals with shorter heading date originated from the BC4F3 populations.There are seven predicted genes within this region.
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Claims 5
Claim · model-written summary
Under normal long-day conditions, line C23011 headed 14.1 days earlier than Nipponbare.
- Taxon
- Rice
Oryza sativat0 - Material
- C23011e0
- Treatment
- single introgressed segment of chromosome 8e0
- Outcome
- heading datee1
- Direction
- shortere1
- Value
- 14.1 de1
- Comparator
- Nipponbaree1
- Setting
- normal long-day conditionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C23011,containing a single introgressed segment of chromosome 8,was derived from the CSSL population”
e1“In normal long-day conditions,its heading date was 14.1 d shorter than that of Nipponbare”
t0“Heading Date in Rice”
Claim · model-written summary
Under short-day conditions, C23011 and Nipponbare showed no obvious difference in heading date.
- Taxon
- RiceOryza sativat0
- Material
- C23011e2
- Treatment
- short-day conditionse2
- Outcome
- heading datee2
- Direction
- no obvious differencee2
- Comparator
- Nipponbaree2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Under short-day conditions,however,no obvious difference in heading date between C23011 and Nipponbare was observed”
t0“Heading Date in Rice”
Claim · model-written summary
The heading date variation is suggested to be controlled by a single major QTL, qHd8.1, from a 3:1 late-to-early segregation.
- Taxon
- RiceOryza sativat0
- Gene
- qHd8.1e3
- Outcome
- heading date variatione3
- Value
- 3∶1e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The ratio of late heading plants to early heading plants showed a 3∶1 frequency distribution,suggesting that the heading date variation was controlled by a single major QTL,which was named qHd8.1”
t0“Heading Date in Rice”
Claim · model-written summary
The qHd8.1 locus was delimited to a 59.94 kb interval between markers S8111 and S849 on BAC clone AP005164.
- Taxon
- RiceOryza sativat0
- Gene
- qHd8.1e3
- Outcome
- intervale4
- Value
- 59.94 kbe4
- Qualifier
- between markers S8111 and S849 on BAC clone AP005164e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The ratio of late heading plants to early heading plants showed a 3∶1 frequency distribution,suggesting that the heading date variation was controlled by a single major QTL,which was named qHd8.1”
e4“the locus was delimited to a 59.94 kb interval between markers S8111 and S849 on BAC clone AP005164”
t0“Heading Date in Rice”
Claim · model-written summary
Seven predicted genes lie within the qHd8.1 region.
- Taxon
- RiceOryza sativat0
- Outcome
- predicted genese5
- Value
- sevene5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“There are seven predicted genes within this region”
t0“Heading Date in Rice”
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