Claim · model-written summary
The average size of substituted chromosomal segments was about 10 cM.
- Taxon
- Oryza sativa
Oryza sativat0 - Outcome
- Average size of the substituted chromosomal segmentse2
- Value
- about 10 cMe2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Oryza sativa”
e2“Average size of the substituted chromosomal segments in the substitution lines was about 10 cM”
Title
Andrés Gonzalo Gutiérrez; Silvio James Carabalí; Olga Ximena Giraldo; et al. BMC Plant Biology 2010. doi:10.1186/1471-2229-10-6
Other claims from this paper (13)
- Method / resource A set of 64 chromosome segment substitution lines of O. glaberrima segments in an O. sativa background was built.
- Observation The substitution lines covered the whole donor genome, except small regions on chromosomes 2 and 4.
- Observation The recurrent genome proportion in the substitution lines was 87.59%.
- Observation The donor genome proportion in the substitution lines was 7.64%.
- Observation Strong segregation distortion was found on chromosomes 3 and 6.
- Observation Transgressive segregation was observed for several traits in the population.
- Observation Fourteen QTLs for plant height, tiller number, panicle length, sterility, 1000-grain weight and grain yield were located on chromosomes 1, 3, 4, 6 and 9.
- Observation A highly significant QTL controlling resistance to Rice stripe necrosis virus was mapped on chromosome 11 between SSR markers RM202-RM26406.
- Observation The mapping of the RSNV locus is the first identification of a genetic factor underlying resistance to this virus.
- Recommendation The population is a powerful breeding tool.
- Recommendation CSSL libraries with entire genome coverage are a useful strategy for QTL discovery.
- Observation The population helps overcome hybrid sterility barriers between rice species.
- Mechanism The segregation distortion on chromosomes 3 and 6 indicates interspecific sterility genes.