Chimeric insecticidal proteins
IRDIG35563 vegetative insecticidal toxins, polynucleotides encoding such toxins, use of such toxins to control pests, and transgenic plants that produce such toxins are disclosed. The invention includes IRDIG35563 variants, fragments and analogs.
1. A recombinant nucleic acid construct comprising one or more heterologous regulatory elements that drive expression of a nucleic acid sequence encoding a polypeptide having insecticidal activity and having at least 96% sequence identity to the polypeptide sequence of SEQ ID NO: 2.
2. The construct of claim 1 in which the nucleic acid sequence is chosen from the group consisting of SEQ ID NO:1, SEQ ID NO:3, and SEQ ID NO:4.
3. An insecticidal chimeric toxin comprising residues 1 to 789 of SEQ ID NO:2.
4. An insecticidal chimeric toxin of claim 3 consisting of SEQ ID NO:2.
5. A plant or plant part comprising a nucleic acid construct of claim 1 .
6. A plant or plant part comprising a nucleic acid construct of claim 2 .
7. The plant part of claim 5 wherein the plant part is a seed.
8. The plant part of claim 6 wherein the plant part is a seed.
9. The plant or plant part of claim 5 , wherein the nucleic acid construct encodes a chimeric toxin having insecticidal activity against one or more insects selected from Spodoptera exigua (Beet armyworm, BAW), Spodoptera eridania (Southern armyworm, SAW), Spodoptera frugiperda (Fall armyworm, FAW), resistant Spodoptera frugiperda (Fall armyworm, FAW), Helicoverpa zea (Corn earworm, CEW), Pseudoplusia includens (Soybean looper, SBL), Anticarsia gemmatalis (Velvetbean caterpillar, VBC), Heliothis virescens (Tobacco budworm, TBW), and Helicoverpa armigera (Cotton bollworm, CBW).
10. A plant or plant part of claim 6 wherein the nucleic acid construct encodes a chimeric toxin having insecticidal activity against one or more insects selected from Spodoptera exigua (Beet armyworm, BAW), Spodoptera eridania (Southern armyworm, SAW), Spodoptera frugiperda (Fall armyworm, FAW), resistant Spodoptera frugiperda (rFall armyworm, rFAW), Helicoverpa zea (Corn earworm, CEW), Pseudoplusia includens (Soybean looper, SBL), Anticarsia gemmatalis (Velvetbean caterpillar, VBC), Heliothis virescens (Tobacco budworm, TBW), and Helicoverpa armigera (Cotton bollworm, CBW).
11. A method for controlling susceptible insects comprising contacting said insect with an effective amount of a toxin of claim 3 .
12. The method of claim 11 wherein the toxin is SEQ ID NO:2.
13. A method for controlling an insect pest population comprising contacting said pest population with a insecticidally effective amount of a toxin of claim 3 .
14. The method of claim 13 wherein the insect pest population is selected from Spodoptera exigua (Beet armyworm, BAW), Spodoptera eridania (Southern armyworm, SAW), Spodoptera frugiperda (Fall armyworm, FAW), Cry1F resistant Fall Armyworm, Helicoverpa zea (Corn earworm, CEW), Pseudoplusia includens (Soybean looper, SBL), Anticarsia gemmatalis (Velvetbean caterpillar, VBC), Heliothis virescens (Tobacco budworm, TBW), and Helicoverpa armigera (Cotton bollworm, CBW).
15. A method for producing an insect resistant or insect tolerant plant comprising breeding a non-transgenic plant with a transgenic plant comprising a construct of claim 1 stably incorporated into the genome of the plant and selecting progeny containing the DNA construct of claim 1 .