Viable mutants

SUP35 and SUP45 are essential genes encoding polypeptide chain release factors. However, mutants for these genes may be viable but display pleiotropic phenotypes which include, but are not limited to, nonsense suppressor phenotype due to translation termination defect.

9p vinarcissa 21-03-2023 3 1   Download

One fundamental question in biology is how the evolution of eukaryotic signaling networks has taken place. “Loss of function” (lof) mutants from components of the high osmolarity glycerol (HOG) signaling pathway in the filamentous fungus Magnaporthe oryzae are viable, but impaired in osmoregulation.

16p visilicon2711 20-08-2021 9 1   Download

The present study was conducted to know the frequency and spectrum of viable mutations after irradiation and revealed that viable mutation frequency was high on M1 plant basis than M2 seedling basis in gamma rays, electron beam and recurrent treatment. Electron beam gave higher frequency of viable mutants than gamma rays.

10p chauchaungayxua8 03-10-2020 16 3   Download

Induced qualitative mutation in JS-335 Soybean cultivar consisted of chlorophyll and viable mutants. The combination treatments exhibit wide spectrum and frequency on both M1 family and M2 plant basis for both. Increased in doses and concentrations of mutagens showed increased in spectrum and frequency. Chlorophyll mutants viz. albino, alboviridis, xantha, xantha- viridis and viridis and viable mutants viz., plant type, leaf, growth habit, flowering, pod, kernel and economic mutation were observed. Desirable mutants like bold poded, early maturing, and high yielding were also isolated.

5p angicungduoc4 26-04-2020 11 0   Download

The present investigation was conducted during the Kharif season of 2013, seeds of black gram [Vingo mungo (L.) Hepper] variety VBN 4 and ACM 07002 were exposed to gamma rays doses at 200, 250, 300 and 350 Gy and EMS (Ethyl Methane Sulphonate) doses at 20, 30 and 40 mM. Wide ranges of viable mutants were isolated in M2 and M3 generation. The mutational change in each quantitative trait can be large or small.

4p nguathienthan4 18-04-2020 14 1   Download

The present investigation was carried out to find the efficiency and effectiveness of various mutagenic treatments of gamma rays and EMS on cape gooseberry. Genetically pure, uniform and dry seeds of cape gooseberry were subjected to 2, 5, 10, 15 and 20 kR doses of gamma rays and 0.02, 0.03, 0.04 and 0.05 M concentration of ethyl methane sulfonate along with control. Chlorophyll mutation, biological damages and viable mutant frequency was recorded in M1 and M2 generation.

7p kethamoi4 16-04-2020 12 2   Download