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Inheritance of Resistance to Bacillus thuringiensis subsp. kurstaki in Trichoplusia ni
The genetic inheritance of resistance to a commercial formulation of Bacillus thuringiensis subsp. kurstaki was examined in a Trichoplusia ni colony initiated from a resistant population present in a commercial vegetable greenhouse in British Columbia, Canada. Progeny of F(1) reciprocal crosses and...
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| Γλώσσα: | English |
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American Society for Microbiology
2004
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| Διαθέσιμο Online: | https://ncbi.nlm.nih.gov/pmc/articles/PMC522097/ https://ncbi.nlm.nih.gov/pubmed/15466525 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1128/AEM.70.10.5859-5867.2004 |
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pubmed-5220972004-10-16 Inheritance of Resistance to Bacillus thuringiensis subsp. kurstaki in Trichoplusia ni Janmaat, Alida F. Wang, Ping Kain, Wendy Zhao, Jian-Zhou Myers, Judith Appl Environ Microbiol Invertebrate Microbiology The genetic inheritance of resistance to a commercial formulation of Bacillus thuringiensis subsp. kurstaki was examined in a Trichoplusia ni colony initiated from a resistant population present in a commercial vegetable greenhouse in British Columbia, Canada. Progeny of F(1) reciprocal crosses and backcrosses between F(1) larvae and resistant (P(R)) and susceptible (P(S)) populations were assayed at different B. thuringiensis subsp. kurstaki concentrations. The responses of progeny of reciprocal F(1) crosses were identical, indicating that the resistant trait was autosomal. The 50% lethal concentration for the F(1) larvae was slightly higher than that for P(S), suggesting that resistance is partially recessive. The responses of both backcross progeny (F(1) × P(R), F(1) × P(S)) did not correspond to predictions from a single-locus model. The inclusion of a nonhomozygous resistant parental line in the monogenic model significantly increased the correspondence between the expected and observed results for the F(1) × P(R) backcross but decreased the correspondence with the F(1) × P(S) backcross results. This finding suggests that resistance to B. thuringiensis subsp. kurstaki in this T. ni population is due to more than one gene. American Society for Microbiology 2004-10 /pmc/articles/PMC522097/ /pubmed/15466525 http://dx.doi.org/10.1128/AEM.70.10.5859-5867.2004 Text en Copyright © 2004, American Society for Microbiology |
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US National Library of Medicine |
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PubMed Central |
| language |
English |
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Article |
| topic |
Invertebrate Microbiology |
| spellingShingle |
Invertebrate Microbiology Janmaat, Alida F. Wang, Ping Kain, Wendy Zhao, Jian-Zhou Myers, Judith Inheritance of Resistance to Bacillus thuringiensis subsp. kurstaki in Trichoplusia ni |
| description |
The genetic inheritance of resistance to a commercial formulation of Bacillus thuringiensis subsp. kurstaki was examined in a Trichoplusia ni colony initiated from a resistant population present in a commercial vegetable greenhouse in British Columbia, Canada. Progeny of F(1) reciprocal crosses and backcrosses between F(1) larvae and resistant (P(R)) and susceptible (P(S)) populations were assayed at different B. thuringiensis subsp. kurstaki concentrations. The responses of progeny of reciprocal F(1) crosses were identical, indicating that the resistant trait was autosomal. The 50% lethal concentration for the F(1) larvae was slightly higher than that for P(S), suggesting that resistance is partially recessive. The responses of both backcross progeny (F(1) × P(R), F(1) × P(S)) did not correspond to predictions from a single-locus model. The inclusion of a nonhomozygous resistant parental line in the monogenic model significantly increased the correspondence between the expected and observed results for the F(1) × P(R) backcross but decreased the correspondence with the F(1) × P(S) backcross results. This finding suggests that resistance to B. thuringiensis subsp. kurstaki in this T. ni population is due to more than one gene. |
| author |
Janmaat, Alida F. Wang, Ping Kain, Wendy Zhao, Jian-Zhou Myers, Judith |
| author_facet |
Janmaat, Alida F. Wang, Ping Kain, Wendy Zhao, Jian-Zhou Myers, Judith |
| author_sort |
Janmaat, Alida F. |
| title |
Inheritance of Resistance to Bacillus thuringiensis subsp. kurstaki in Trichoplusia ni |
| title_short |
Inheritance of Resistance to Bacillus thuringiensis subsp. kurstaki in Trichoplusia ni |
| title_full |
Inheritance of Resistance to Bacillus thuringiensis subsp. kurstaki in Trichoplusia ni |
| title_fullStr |
Inheritance of Resistance to Bacillus thuringiensis subsp. kurstaki in Trichoplusia ni |
| title_full_unstemmed |
Inheritance of Resistance to Bacillus thuringiensis subsp. kurstaki in Trichoplusia ni |
| title_sort |
inheritance of resistance to bacillus thuringiensis subsp. kurstaki in trichoplusia ni |
| publisher |
American Society for Microbiology |
| publisher_facet |
American Society for Microbiology |
| publishDate |
2004 |
| url |
https://ncbi.nlm.nih.gov/pmc/articles/PMC522097/ https://ncbi.nlm.nih.gov/pubmed/15466525 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1128/AEM.70.10.5859-5867.2004 |
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1760251630865874944 |