Transcription factors and method for increased fiber length of cotton
OwnerChristopher Dale Rock, Amandeep Mittalinventors
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Abstract
The present invention includes a seed, a plant, a protoplast, a hybrid and methods of making the same of a cotton cultivar recombinantly modified overexpresses at least one of AtRAV1, AtRAV2 to confer longer fibers to transgenic cotton plants under drought conditions without an effect on yield.
Claims23
A seed of a cotton cultivar recombinantly modified by transformation with and overexpression of at least one of AtRAV1 or AtRAV2 or orthologs thereof, wherein the cotton cultivar has longer fibers compared to non-transgenic parent cotton plants grown under drought conditions.
A method of producing a cotton plant with longer fibers and delayed flowering to transgenic cotton plants under drought conditions, wherein the method comprises recombinantly modifying a cotton cultivar by transformation with and overexpression of at least one of AtRAV1 or AtRAV2 or orthologs thereof, wherein the cotton plant has longer fibers compared to non-transgenic parent cotton plants grown under drought conditions, wherein the transgenic cotton ovules produce longer lint of higher quality without significant reductions in yield.
A method of introducing a desired trait into a cotton cultivar, wherein the method comprises:
- (a) crossing a first cultivar with a plant of another cotton cultivar that overexpresses at least one of AtRAV1 or AtRAV2 or orthologs thereof to produce a desired trait to produce progeny plants wherein the desired trait is transgenic cotton ovules that produce longer lint of higher quality without significant reductions in yield;
- (b) selecting one or more progeny plants that have the desired trait;
- (c) backcrossing the selected progeny plants with the first cultivar to produce backcross progeny plants;
- (d) selecting for backcross progeny plants that have the desired trait;
- and
- (e) repeating steps (c) and (d) two or more times in succession to produce selected third or higher backcross progeny plants that comprise the desired trait and all of the physiological and morphological characteristics of the first cultivar that produce longer lint of higher quality without significant reductions in yield.
Dependencies are inferred from the claim text.