Abstract
In order to explore the male sterile( MS) lines' cytoplasmic effects and the restorer lines' resistant inheritance of rice false smut,with anti-false smut MS 45A as the female parent,crossed with 14 susceptible restorer lines( R988 etc.) and 16 resistant restorer lines( R288 selection etc.),the study carried out at a disease nursery with natural induce and auxiliary artificial inoculation. The results showed that no cytoplasmic effects existed in antifalse smut MS 45A,and F1of 45A crossed with 14 susceptible restorer lines exhibited susceptible to rice false smut.When 45A crossed with 16 resistant restorer lines,F1 showed three patterns of resistance inheritance including dominant,incompletely dominant and recessive. Dominant and incompletely dominant frequency accounted for 81. 25%.There was highly significant positive correlation between F1 disease indicators and corresponding restorer lines indicators which included disease spike rate,disease index,average diseased grains per panicle,and highest disease grains. HA188,HA197,and HA198 etc. new germlasm of anti-false smut hybrid rice restorer lines were screened.And hybrid rice breeding for false smut resistance was discussed.
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Claims 6
Claim · model-written summary
The anti-false smut male sterile line 45A showed no cytoplasmic effects on rice false smut resistance.
Verbatim
t0“Indica Hybrid Rice”
e0“no cytoplasmic effects existed in antifalse smut MS 45A”
Claim · model-written summary
F1 plants of 45A crossed with 14 susceptible restorer lines were susceptible to rice false smut.
- Taxon
- Indica Hybrid Ricet0
- Material
- 14 susceptible restorer linese0
- Interactor
- rice false smut
Ustilaginoidea virense0pathogen - Outcome
- susceptible to rice false smute0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Indica Hybrid Rice”
e0“F1of 45A crossed with 14 susceptible restorer lines exhibited susceptible to rice false smut”
Claim · model-written summary
F1 plants of 45A crossed with 16 resistant restorer lines showed three patterns of resistance inheritance: dominant, incompletely dominant and recessive.
Verbatim
t0“Indica Hybrid Rice”
e0“When 45A crossed with 16 resistant restorer lines,F1 showed three patterns of resistance inheritance including dominant,incompletely dominant and recessive”
Claim · model-written summary
Dominant and incompletely dominant patterns together accounted for 81. 25% of the F1 crosses with resistant restorer lines.
Verbatim
t0“Indica Hybrid Rice”
e0“Dominant and incompletely dominant frequency accounted for 81. 25%”
Claim · model-written summary
F1 disease indicators were highly significantly and positively correlated with the corresponding indicators of the restorer lines.
Verbatim
t0“Indica Hybrid Rice”
e0“There was highly significant positive correlation between F1 disease indicators and corresponding restorer lines indicators”
Claim · model-written summary
HA188, HA197 and HA198 were screened as new anti-false smut hybrid rice restorer line germplasm.
Verbatim
t0“Indica Hybrid Rice”
e0“HA188,HA197,and HA198 etc. new germlasm of anti-false smut hybrid rice restorer lines were screened”