Texas Male Sterile Corn

Texas Male Sterile Corn Youtube The absence of a gene found only in plants with texas male sterile cytoplasm is the reason for this resistance. [1] corn plants with t cms cytoplasm have maternally inherited the gene t urf 13, which encodes for a protein component of the inner mitochondrial membrane. t toxin acts on this portion of the mitochondria. [4]. The first commercial cytoplasmic male sterile, discovered in texas, is known as cms t. the use of cms t, starting in the 1950s, eliminated the need for detasseling . in the early 1970s, plants containing cms t genetics were susceptible to southern corn leaf blight and suffered from widespread loss of yield.

Ppt Chapter 4 Phytotoxin Powerpoint Presentation Free Download Id Male sterility male sterility in corn was first discovered in peru from seed ings of an ear of an open pollinated cultivar grown by r.a emerson and f.d. richey (duvick, 1965). a cross was made to a plant from chile that was unrelated, producing 45 f 1 kernels that were all male sterile but, when fertilized with viable pollen,. Abstract. the texas cytoplasm of maize carries two cytoplasmically inherited traits, male sterility and disease susceptibility, which have been of great interest both for basic research and plant breeding. the two traits are inseparable and are associated with an unusual mitochondrial gene, t urf13, which encodes a 13 kilodalton polypeptide. The southern corn (zea mays l.) leaf blight (sclb) epidemic of 1970–1971 was one of the most costly disease outbreaks to affect north american agriculture, destroying 15% of the crop at a cost of us$1.0 billion (≥$6.0 billion by 2015 standards.). it resulted from an over reliance on cytoplasmic texas male sterile (cms t) lines in hybrid. It was the result to a natural mutation of an existing corn disease, a crop in which >85.0% had a common genetic back ground of texas male sterile used in growing the seed, and a favorable environment for the fungus to spread. some areas lost up to 30 50% of their crop with some farms losing 100% of their production.

Callus Formation And Differentiation In Tissue Cultures Of Normal And The southern corn (zea mays l.) leaf blight (sclb) epidemic of 1970–1971 was one of the most costly disease outbreaks to affect north american agriculture, destroying 15% of the crop at a cost of us$1.0 billion (≥$6.0 billion by 2015 standards.). it resulted from an over reliance on cytoplasmic texas male sterile (cms t) lines in hybrid. It was the result to a natural mutation of an existing corn disease, a crop in which >85.0% had a common genetic back ground of texas male sterile used in growing the seed, and a favorable environment for the fungus to spread. some areas lost up to 30 50% of their crop with some farms losing 100% of their production. The texas, or t, cytoplasm (cms t) of maize (zea mays l.) carries a cytoplasmic ally inherited male sterility. this cytoplasmic male sterility (cms) suppresses the production of viable pollen grains and is inherited in a non mendelian manner. cms t was first described in the line golden june in texas [32, 69]. For example, prior to the epidemic of southern corn leaf blight in 1970, male sterile t (texas) cytoplasm maize system was used to produce approximately 85% of hybrid seed in the usa. breeders produce hybrid seed using a cms system by developing female lines that carry cms cytoplasm but lack restorer genes and by developing male lines that.