Claim · model-written summary
Resistance in crosses with Sumian 16 segregated 3:1 and was interpreted as controlled by one dominant gene pair.
- Taxon
- cotton
Gossypium hirsutumt0 - Material
- Sumian 16e0
- Interactor
- Helicoverpa armigera
_gusano_cogollero.png?width=60)
Helicoverpa armigerae0pestt1 - Gene
- one pair of dominant genese0
- Outcome
- segregation of resistant and susceptible plantse0
- Value
- 3∶1 ratioe0
Not reportedCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“segregation of resistant and susceptible plants fits 3∶1 ratio in F2 populations crossed among the two homologous transgenic lines and Sumian 16,respectively. This result indicated that the resistance of homologous transgenic lines to Helicoverpa armigera was controlled by one pair of dominant genes.”
t0“Cotton”
t1“Helicoverpa armigera”
Title
Tianzhen Zhang Mianhua xuebao 2007
Other claims from this paper (12)
- Observation Five transgenic cotton plants were recovered after kanamycin screening.
- Observation PCR and Southern hybridization indicated stable integration of the exogenous genes in cotton.
- Observation Bollworm larval mortality exceeded 90% after five days of feeding on leaves of lines 312-5 and 332-2.
- Observation The two transgenic lines were more effective against neonate larvae than sGK321.
- Observation Homozygous lines 312-5 T2 and 332-2 T2 were obtained in the second generation.
- Observation The two homozygous transgenic lines showed high resistance to bollworm in bioassays.
- Observation F1 crosses with sGK321 and R19 retained parental bollworm resistance, suggesting no co-suppression in heterozygotes.
- Observation The 312-5T2 by sGK321 F2 cross yielded 112 resistant and 12 susceptible plants, fitting 15:1 segregation.
- Observation The 332-2T2 by sGK321 F2 cross yielded 187 resistant and 20 susceptible plants, fitting 15:1 segregation.
- Observation Resistance in the 312-5T2 by R19 F2 cross fit a 15:1 ratio, consistent with independent Bt inheritance.
- Observation All plants in the 332-2T2 by R19 F2 cross resisted bollworm, implying linked Bt inheritance.
- Recommendation The authors considered lines 312-5T2 and 332-2T2 valuable for developing bollworm resistant cotton varieties.