Life Sciences Commons^™

Mitochondrial Dna Diversity And Evolutionary History Of Native Human Populations Of Northwest Patagonia (Argentina), María Bárbara Postillone, Virginia Agustina Cobos, Celmira Urrutia, Cristina Beatriz Dejean, Paula N. Gonzalez, Sergio Ivan Perez, Valeria Bernal

Human Biology Open Access Pre-Prints

The genetic composition of Amerindian descendants from Patagonia has long been a focus of interest, although the information available is still scarce for many geographic areas. Here, we report the first analysis of the variation in the mtDNA control region for an area of northwestern Patagonia, the North of Neuquén, with the aim of studying the processes and historical events that modeled the evolutionary history of these human groups. We analyzed 113 individuals from two localities of northern Neuquén, along with 6 from southern Neuquén and 223 mtDNA sequences previously published from neighboring areas from Argentina and Chile. We estimated …

Addressing The Issue Of Missing Heritability: The Importance Of Apoptosis In Hereditary Breast And Ovarian Cancer And Functional Assessment Of Tp53i3-S252*, Sophia Chaudhry

Wayne State University Dissertations

A quarter of all cases of ovarian cancer (OVCA) cases are due to inherited factors. However, much of the genetic risk remains unknown. We have previously established the importance of whole exome sequencing to answer the question for missing heritability. We identified clinically actionable and novel risk loci in the DNA repair and cell cycle regulation pathways by assessing a cohort of women diagnosed with OVCA, wildtype for BRCA1/BRCA2 and suspected to be hereditary due to family history of breast cancer/OVCA. Equally as important was the exploration and discovery of novel risk loci in the apoptosis pathway. A total of …

A Mechanism For Sex Determination In Dioecious Cultivated Spinach, Nicholas West

Wayne State University Dissertations

While unisexual flowers have evolved repeatedly throughout angiosperm families, the actual identity of sex determining genes has been elusive, and their regulation within populations remains largely undefined. Additionally, sex liability is often observed in unisexual plants and has been correlated to external and internal cues, suggesting that the genes responsible for unisexual morphology are not necessarily segregating but rather differentially regulated. Understanding these processes will be of significant theoretical and agronomical importance.

Cultivated spinach is a dioecious species in which an individual will bear alternative sexual organs. Previous work has identified spinach B class floral organ identity genes, SpAP3 and …