Inbred corn line IV4

Patent metadata

Field	Value
Publication number	US-10143151-B2
Application number	US-201715465988-A
Country	US
Kind code	B2
Filing date	Mar 22, 2017
Priority date	Mar 22, 2016
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

Inbred corn line, designated IV4, is disclosed. The invention relates to the seeds of inbred corn line IV4, to the plants and plant parts of inbred corn line IV4 and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line IV4 with itself or another corn line. The invention also relates to products produced from the seeds, plants, or parts thereof, of inbred corn line IV4 and/or of the hybrids produced using the inbred as a parent. The invention further relates to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other inbred corn lines derived from inbred corn line IV4.

First claim

What is claimed is:

1. A seed of inbred corn line designated IV4, wherein a representative sample of seed of said line was deposited under ATCC Accession No. PTA-124035.

2. A corn plant, or a part thereof, produced by growing the seed of claim 1 .

3. A corn plant, or a part thereof, having all the physiological and morphological characteristics of inbred line IV4, wherein a representative sample of seed of said line was deposited under ATCC Accession No. PTA-124035.

4. A tissue culture of cells produced from the plant of claim 2 .

5. A corn plant regenerated from the tissue culture of claim 4 , wherein the regenerated plant has all the morphological and physiological characteristics of inbred line IV4, wherein a representative sample of seed of said line was deposited under ATCC Accession No. PTA-124035.

6. A method for producing a hybrid corn seed wherein the method comprises crossing the plant of claim 2 with a different corn plant and harvesting the resultant hybrid corn seed.

7. A hybrid corn seed produced by the method of claim 6 .

8. A hybrid corn plant produced by growing the seed of claim 7 .

9. A method for producing inbred corn line IV4, wherein a representative sample of seed of said line was deposited under ATCC Accession No. PTA-124035, wherein the method comprises:
a) planting a collection of seeds comprising seed of a hybrid, one of whose parents is inbred line IV4, said collection also comprising seed of said inbred;
b) growing plants from said collection of seeds;
c) identifying the plants having the physiological and morphological characteristics of inbred corn line IV4 as inbred parent plants;
d) controlling pollination of said inbred parent plants in a manner which preserves the homozygosity of said inbred parent plant; and
e) harvesting the resultant seed and thereby producing an inbred corn line having all of the physiological and morphological characteristics of inbred corn line IV4.

10. The method of claim 9 wherein step (c) comprises identifying plants with decreased vigor compared to the other plants grown from the collection of seeds.

11. A method for producing a corn plant that contains in its genetic material one or more transgenes, wherein the method comprises crossing the corn plant of claim 2 with either a second plant of another corn line which contains a transgene or a transformed corn plant of the inbred corn line IV4, so that the genetic material of the progeny plant that results from the cross contains the transgene(s) operably linked to a regulatory; and
harvesting the resultant seed.

12. A corn plant produced by the method of claim 11 .

13. The corn plant of claim 12 , wherein the transgene confers resistance to an herbicide selected from the group consisting of imidazolinone, sulfonylurea, glyphosate, glufosinate, L-phosphinothricin, triazine and benzonitrile.

14. The corn plant of claim 12 , wherein the transgene encodes a Bacillus thuringiensis protein.

15. The corn plant of claim 12 , wherein the transgene confers disease resistance.

16. The corn plant of claim 12 , wherein the transgene confers water stress tolerance.

17. The corn plant of claim 12 , wherein the transgene confers increased digestibility.

18. A method for producing a hybrid corn seed wherein the method comprises crossing the plant of claim 12 with a different corn plant and harvesting the resultant hybrid corn seed.

19. A method of producing a corn plant with increased waxy starch or increased amylose starch wherein the method comprises transforming the corn plant of claim 2 with a transgene that modifies waxy starch or amylose starch metabolism, thereby producing a corn plant with increased waxy starch or amylose starch metabolism.

20. A corn plant produced by the method of claim 19 .

21. A method of introducing one or more desired traits into inbred corn line IV4 wherein the method comprises:
a) crossing the inbred line IV4 plants grown from the inbred line IV4 seed, wherein a representative sample of seed of said line was deposited under ATCC Accession No. PTA-124035, with plants of another corn line that comprise one or more desired traits to produce progeny plants, wherein the one or more desired traits are selected from the group consisting of male sterility, male fertility, herbicide resistance, insect resistance, disease resistance, waxy starch, water stress tolerance, increased amylose starch and increased digestibility;
b) selecting progeny plants that have the one or more desired traits to produce selected progeny plants;
c) crossing the selected progeny plants with the inbred corn line IV4 plants to produce backcross progeny plants;
d) selecting for backcross progeny plants that have the one or more desired traits and physiological and morphological characteristics of inbred corn line IV4 listed in Table 1 to produce selected backcross progeny plants; and
e) repeating steps (c) and (d) one or more times in succession to produce selected second or higher backcross progeny plants that comprise the desired one or more traits and all of the physiological and morphological characteristics of inbred corn line IV4 as listed in Table 1.

22. A corn plant produced by the method of claim 21 , wherein the plant has the one or more desired traits and otherwise all of the physiological and morphological characteristics of inbred corn line IV4, wherein a representative sample of seed of said line was deposited under ATCC Accession No. 124035.

23. A method for producing inbred corn line IV4 seed, wherein a representative sample of seed of said line was deposited under ATCC Accession No. PTA-124035, wherein the method comprises crossing a first inbred parent corn plant with a second inbred parent corn plant and harvesting the resultant corn seed, wherein both said first and second inbred corn plant are the corn plant of claim 2 .

24. A method for producing inbred corn line IV4 seed, wherein a representative sample of seed of said line was deposited under ATCC Accession No. PTA-124035, wherein the method comprises:
a) planting the inbred corn seed of claim 1 ;
b) growing a plant from said seed;
c) controlling pollination in a manner that the pollen produced by the grown plant pollinates the ovules produced by the grown plant; and
d) harvesting the resultant seed and thereby producing an inbred corn line having all of the physiological and morphological characteristics of inbred corn line IV4.

25. A method for producing a corn seed that contains in its genetic material one or more transgenes, wherein the method comprises crossing the corn plant of claim 2 with either a second plant of another corn line which contains one or more transgenes or a transformed corn plant of the inbred corn line IV4, wherein the transgene(s) is operably linked to a regulatory element; and harvesting the resultant seed.

26. A corn seed, or a part thereof, produced by the method of claim 25 .

27. A method for producing a hybrid corn seed wherein the method comprises crossing the plant of claim 22 with a different corn plant and harvesting the resultant hybrid corn seed.

28. A hybrid corn seed produced by the method of claim 27 .

29. A method of producing a corn product, said method comprising the step of milling the inbred seed of claim 1 , thereby producing the corn product.

30. The method of producing a corn product of

Assignees

• Limagrain Europe SA
• Kws Saat Se & Co Kgaa

Inventors

• Van Der Reijden Antoon

Classifications

• A01H1/02

  Methods or apparatus for hybridisation; Artificial pollination {; Fertility} · CPC title

• A01H6/46

  Gramineae or Poaceae, e.g. ryegrass, rice, wheat or maize · CPC title

• A01H5/10 Primary

  Seeds · CPC title

• A01H6/4684 Primary

  Zea mays [maize] · CPC title