PJB-1980-6
Studies on the organization of genes controlling lysine biosynthesis in neurospors crassa IV. Segregation patterns, maturity and viability of ascospora and conidiation of some lys05 mutants .
Majeed ahmad and
S. haque and M.U. ahmad , A. zaman , M. mohiuddin, Y.A. saeed and A.
khairul.
Abstract
Studies on 39 U.V. induced lys-5
mutants have shpwn that a mutation at this locus not only results in a requirement for lysine but also
retards the maturation of spores. The mutant spores lack pigment at a
stage of development when the wild type spores have acquitted it.
Mutant spores are mostly inviable, the inviability of mutant acospores have been found to range from about 70 to 95%. Both the pigments and viability of acspores generally improves with time. In addition to
the expcted first and second division, segregation patterns of coloured and colourless spores , 98 different
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