Sordaria fimicola

Nicole Hain Bio 110 Sordaria fimicola Lab Report Introduction “Evolution Canyon” consists of two slopes in Israel that are close in proximity, but have a huge difference in environment. This makes the slopes a good model system for exploring evolution, especially because they’re so close to one another. The South Facing Side (SFS) receives more sunlight than the North Facing Side (NFS). This extreme sun exposure causes the South slope to have drought and arid conditions whereas the North side has

Genetic Variation in Sordaria Finicola Introduction: The purpose of the Sordaria Lab was to explore the affects of genetic variation caused by meiosis and to record how sexual reproduction] affects the amount of crossing over in certain strains of Sordaria Fimicola. These organisms are ascomycetes and are also known as sac fungi. This is because the shape of their asci is in the form of a sac; inside each sac there are structures called ascospores. It is these structures, ascospores, where genetic

Introduction Sordaria fimicola is a commonly studied species of fungi from the phylum of Ascomycota, commonly known as the sac fungi or ascomycetes. Sordaria is more specifically studied in many mycology labs to gain a greater understanding of the exceptional formation of as many as 8 haploid ascospores. Normally Sordaria and other fungi exists as a haploid organism, but occasionally when the mycelium from two individuals meet, a diploid zygote is formed. The diploid cell is formed by the fusion

species of Sordaria Fimicola (S. Fimicola) and more importantly had a tight ecological barrier. The canyon has two slopes that experience vastly different environmental conditions and thus expose organisms who inhabit them with bipolar pressures. Organisms living on the South Facing Slope (SFS) experience higher and more intense amounts of solar radiation, temperature, and drought. While Sordaria who inhabit the North Facing Slope (NFS) receive more cool and humid conditions. Sampled Sordaria from

type 2:4:2 (Table IB-1). With these observations, we determined the map distance which was 27.5 map units (Figure 5.4). Since asci of type 4:4 were observed more, crossing over occurred less, thus producing less asci with different arrangements. Sordaria also undergo mitosis because the end result of meiosis are four haploid cells and haploid cells cannot divide by meiosis. Lastly, since more asci with type 4:4 were observed, the hypothesis was supported—more black ascus were also observed which

Meiosis and Genetic Diversity in Sordaria 979554296 Biology 110 Lab Introduction: In Israel there exists multiple spots in the mountains called Evolution Canyons, which are all located between a southern facing slope (SFS) and a northern facing slope (NFS). What’s particularly interesting about these locations is that despite the two slopes being on opposite sides of a small canyon, they exhibit extremely contrasting conditions. The SFS receives multiple times the UV radiation from the sun

of diploid. DNA replication does not occur in Interphase II, and prophase, metaphase, anaphase, and telophase occur as usual. The only change is the number of chromosomes. The process of crossing over can be easily studied in Sordaria fimicola, an ascomycete fungus. Sordaria form a set of eight ascospores called an ascus. They are contained in a perithecium until they are mature and ready for release. Crossing over can be observed in the arrangement and color of these asci. If an ascus has four tan

2013 Section 24 TA- Erik Ohlson Meiosis and Genetic Diversity in the Model Organism, Sordaria fimicola Introduction Research groups from the Imperial College of Science, Technology and Medicine and the Institute of Evolution at the University of Haifa have been studying the model organism, Sordaria fimicola, in regards to controlling cross over frequency in response to environmental pressures. Sordaria fimicola is a good model organism because it has a fast life cycle and elongated asci that are

Gene Mapping in Ascospore Sordaria Cultures by Recombination Abstract The laboratory experiment demonstrates the process of meiosis using the Sordaria Fimicola fungi. Meiosis is important because it is the process that generates diversity in genetics. A wildtype was crossed with two mutant types: tan and grey. In order to exhibit recombination, the sequence of ascospores needed to result in a 2:2:2:2 or 2:4:2 sequence. From the crossover

commonly known that the cross-over happens during meiosis, which causes the genetic variations through the exchange of DNA sequences, we do not know much about the factors that vary these reproductions. In “Evolution Canyon”, the organism called “Sordaria fimicola” has been studied by scientists due to their difference in cross-over frequencies. There are two types of slope in “Evolution Canyon.”: the South Facing Slope(SFS) which receives higher solar radiation, causing high temperature and draught, and