Increase in rust resistance of farm vehicles at storage due to use of new protective lubricant

USE OF CELL AND MOLECULAR GENETIC MANIPULATION TO IMPROVE PASTURE PLANTS

Proceedings of the New Zealand Grassland Association ◽

10.33584/jnzg.1988.49.1828 ◽

1988 ◽

pp. 67-72

Author(s):

D.W.R. White

Keyword(s):

Cell Culture ◽

Perennial Ryegrass ◽

White Clover ◽

Nutritional Quality ◽

Rust Resistance ◽

Herbicide Tolerance ◽

Pest Resistance ◽

Crown Rust ◽

Wide Range ◽

Pasture Plants

Cell culture and genetic engineering techniques can be used to develop improved pasture plants. To utilise these methods we have developed procedures for regenerating plants from tissue cultures of perennial ryegrass and white clover. In both, the plant genotype influences regeneration capacity. There was significant genetic variation among regenerated perennial ryegrass plants in a wide range of characteristics. Most of the regenerants were resIstant to crown rust and this trait was highly heritable. This rust resistance is being used to breed a new ryegrass cultivar. A system for introducing cloned genes into white clover is described. This capability is bemg used to incorporate genes with the potential to improve nutritional quality and pest resistance. Other possibilities for engineering genetic improvements in white clover, genes conferring herbicide tolerance and resistance to white clover mosaic virus, are briefly outlined. Keywords: Lolium perenne, Trifolium repens, cell culture, somaclonal variation, crown rust resistance, transformation, cloned genes, nutritional quality, proteinase inhibitors, Bt toxins, pest resistance, WCMV viral cross-protection, herbicide tolerance, Agrobacterium, Bacillus thuringenisis.

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EVALUATION OF SPRING TRITICALE SAMPLES (×TRITICOSECALE WITTM.) FOR LEAF RUST RESISTANCE (PUCCINIA TRITICINA ERIKSS.) IN FIELD EXPERIMENTS IN MOSCOW REGION CONDITIONS

Izvestiâ Timirâzevskoj selʹskohozâjstvennoj akademii ◽

10.26897/0021-342x-2017-3-5-18 ◽

2017 ◽

pp. 5-18 ◽

Cited By ~ 1

Author(s):

I.V. GRUZDEV ◽

◽

YE.V. ZAKHAROVA ◽

L.S. BOLSHAKOVA ◽

A.A. SOLOVIEV

Keyword(s):

Leaf Rust ◽

Rust Resistance ◽

Field Experiments ◽

Puccinia Triticina ◽

Leaf Rust Resistance ◽

Moscow Region ◽

Spring Triticale

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Transfer of leaf and stripe rust resistance genes Lr19 and Yr15 in to a susceptible wheat cultivar HS295

Indian Journal of Genetics and Plant Breeding (The) ◽

10.31742/ijgpb.79.3.12 ◽

2019 ◽

Vol 79 (3) ◽

Author(s):

Pratima Sharma ◽

Madhu Patial ◽

Dharam Pal ◽

S. C. Bhardwaj ◽

Subodh . Kumar ◽

...

Keyword(s):

Rust Resistance ◽

Ssr Marker ◽

Scar Marker ◽

Adult Plant Resistance ◽

Wheat Cultivar ◽

Stripe Rust Resistance ◽

Adult Plant ◽

Potential Donor ◽

Seedling Resistance ◽

Breeding Lines

The present study was conducted to transfer multiple rust resistance in a popular but rust susceptible wheat cultivar HS295. Selected derivatives WBM3632 and WBM3635 have been developed from a cross, HS295*2/FLW20//HS295*2/ FLW13 using bulk-pedigree method of breeding. Advance line WBM3697 selected from a breeding line WBM3532 was named as HS661. This line was evaluated for seedling resistance to a wide array of rust pathotypes and found to possess resistance to all the three rusts. HS661 was also tested under field conditions and showed adult plant resistance to leaf rust (AC1=0.6), stem rust (ACI=2.7) and strpe rust (AC1=3.8). Among 34 F3 lines, 28 were tested positive for SSR marker Xwmc221 indicating the presence of Lr19/Sr25. Out of 14 selected F4 lines from F3, nine were homozygous positive for Lr19/Sr25. The advanced breeding lines viz., WBM3632 (WBM3697) and WBM3635 were also positive for Lr19/Sr25 with SCAR marker SCS265512. SSR marker Xgwm1 producing 215 bp band in Avst-15, FLW13 and HS661 confirmed the presence of Yr15 . Agronomically, HS661 was comparable with recipient variety HS295 and superior to a standard check HS490 under late sown restricted irrigation production conditions of NHZ. HS661 may serve as a potential donor for creating new usable variability against all the three rusts.

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