Various molecular markers can be applied to accelerate the breeding process of Brassicaceae plants. The aim present study was assess usefulness available connected blackleg resistance and screen for linked genes influencing major morphological characteristics, suitable further selection hybrids. Combining field results allowed useful SSR markers, including mstg004 mstg027 color flowers marker m...

Abstract Sex has a significant effect on various traits among dioecious plants. In this analysis of the sex radial growth and wood density numerous 20-year-old trees Populus deltoides growing in common garden, male performed better than females growth, but did not significantly affect density. Growth rate were weakly negatively correlated. selection is also critical for controlling seed-hair po...

The ability to determine the sex of an individual based on DNA evidence can be crucial in instances such as identification of victims of mass disaster, missing persons investigations, and sexual assault cases. The Y chromosome marker amelogenin is currently in widespread use for determination of chromosomal sex of an unknown DNA donor and differentiating the relative contributions of male and f...

The use of a sex-linked molecular marker for early sex diagnosis in the dioecious species Asparagus officinalis L. was evaluated. Screening of random genomic probes as a part of a restriction fragment length polymorphism mapping project resulted in the identification of a sex-linked (6.9 cM) marker. The usefulness of this molecular tool was compared to morphological markers for prediction of ge...

BACKGROUND Little is known about the number or chromosomal location of genetic loci that might identify individuals destined to have a long life span. Analysis of gene/life span associations in mice, which are short-lived compared to humans, might provide guidance for an analysis of the genetic basis of life span in humans. METHODS A group of 144 genetically heterogeneous mice, produced by a ...

We characterized the male-specific region on the Y chromosome of rainbow trout, which contains both sdY (the sex-determining gene) and the male-specific genetic marker, OmyY1. Several clones containing the OmyY1 marker were screened from a BAC library from a YY clonal line and found to be part of an 800 kb BAC contig. Using fluorescence in situ hybridization (FISH), these clones were localized ...

A polymorphic DNA marker has been found genetically linked, in a set of 39 human families, to an autosomal recessive gene that causes cystic fibrosis (CF), a disease affecting one in 2000 Caucasian children. The DNA marker (called D0CRI-917) is also linked to the PON locus, which by independent evidence is linked to the CF locus. The best estimates of the genetic distances are 5 centimorgans be...

Although sex-linkage in animals is no longer an unusual phenomenon, its apparent rarity in rodents is noteworthy, especially in the intensively studied house mouse and rat. Hauschka, et al.,1 have presented evidence for a sex-linked lethal altering the sex ratio in the house mouse; Falconer2 recently reported a second sex-linked mutation in the house mouse. A third sex-linked mutation, Bent-tai...

Many animal taxa show frequent and rapid transitions between male heterogamety (XY) and female heterogamety (ZW). We develop a model showing how these transitions can be driven by sex-antagonistic selection. Sex-antagonistic selection acting on loci linked to a new sex-determination mutation can cause it to invade, but when acting on loci linked to the ancestral sex-determination gene will inhi...