Inheritance of pale flower, calyx spotting, and glandular pubescence in Mimulus guttatus X M. platycalyx progenies
Article Abstract:
A single recessive gene, designated as P/p, controls the pale flower color phenotype in Mimulus sp.. Calyx spotting and glandular pubescence fail to give the Mendelian ratio in a reproducible manner in crosses between Mimulus guttatus and M. platycalyx. The analysis of the F(sub 3) populations show that one or a few major genes control calyx spotting and glandular pubescence. The poor fit to Mendelian ratio can be caused by environmental factors, segregation of other modifiers or incomplete penetrance. Linkage is absent among these loci.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1997
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Morphological marker loci to detect selfing in experimental Mimulus guttatus x Mimulus platycalyx crosses
Article Abstract:
Selfing took place at rates up to 37% in backcrosses which appeared clean and direct when calyx spotting and flower colour were used to investigate levels of selfing taking place with hybridization and backcrossing during quantitative gene mapping work on Mimulus guttatus Fischer and M. platycalyx Pennell. It was established that direct crossing followed by emasculation is less desirable than emasculation by corolla removal before anthesis. It was suggested that selfing takes place during the application of outcross pollen.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1997
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Molecular mapping of genes affecting pubescence of cotton
Article Abstract:
A study was conducted to analyze the molecular mapping of genes influencing the pubescence of cotton. Trichome density was quantified using a qualitative grading system and a quantitative measure of leaf trichome density. Results indicated that the frequency distributions of lear trichome counts correlated with the genetic control of the trait. Findings also showed that direct trichome counts were more sensitive than qualitative indices.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1999
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