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Week of: Feb 24, 2019

Janelle Adsit English

Toyon Literary Magazine is hosting its annual bilingual release party on March 11 at 6:30pm in the KBR. Come celebrate Toyon’s 65th issue! Hear great literary performances! Receive your free copy of the latest issue! Games, food, give-aways! For more information, visit https://www.toyonliterarymagazine.org/upcoming-events.html

Stephanie Steffen Biological Sciences

Biological Sciences Special Seminar - Blake Riggs, Ph.D., Associate Professor, Department of Biology, San Francisco State University will present “Endoplasmic Reticulum dynamics during mitosis: a pathway for the generation of cellular diversity”

The goal of the proposed research is to define the pathway of inheritance involving cell fate determinants and identify novel targets involved in the their transport and partitioning using the model organism, Drosophilamelanogaster.

Dr. Riggs employs both genetic andinvivocytological approaches to investigate the role ofJagnon development and neural cell fate. In addition, the PI will work with undergraduate researchers to identify targets that interact withJagnby performing a dominant modifier-based screen of theDrosophilagenome towards control asymmetric ER partitioning during mitosis. The experiments set forth in this application will provide new insight into the larger issue of the generation of cell diversity and has the potential to openthe field to new models of asymmetric divisions.

Date:  March 1, 2019
Time:  3:00 PM
Location:  Science B 135

Stephanie Steffen Biological Sciences

Biological Sciences Seminar – Sarah Signor, PhD, University of California, Berkeley will present “Mapping the phenotype to the genotype: Convergent evolution, complex phenotypes, and environment”

Understanding the genetic basis of adaptive evolution, and the connection between the genotype and the phenotype, is one of the primary challenges of modern evolutionary biology. For example, did a trait evolve due to changes in the sequence of a gene that codes for a protein, or changes in the regulation of its expression? Understanding generalities about evolution is complicated by the fact that each evolutionary transition is an independent experiment. Convergent evolution can solve this problem by providing natural replication that can be exploited to understand how traits evolve in general. In the first part of my talk I will describe research in which I mapped the genetic basis of sexually dimorphic pigmentation in four pairs of Drosophila, and found strong evidence for repeated recruitment of the same genes to specify similar pigmentation in different species. In the second part of my talk, I will describe my work on understanding how evolution proceeds at the genetic level in complex and environment dependent traits. I focus on ethanol adaptation in two species of Drosophila with contrasting ecological histories with ethanol, and ask how adaptive environmental interactions evolve. Future research will address the generality of these findings by combining historical population comparisons with convergent evolution and investigations into the genomic and epigenetic mechanisms underlying environmental interactions. This is the thrust of my research program – using cases of convergent evolution of complex, environmentally dependent traits and cutting-edge molecular approaches to understand how adaptation occurs within the genome.

Date:  Friday, March 1, 2019
Time:  4:00 PM
Location:  Sci B 133

Week of: Feb 17, 2019

Julie Tucker CNRS, Dean's Office

Please join us in welcoming Alaskan artist, author, humorist and songwriter, Ray Troll to Humboldt State University. Artist Ray Troll has spent over half his 65 years in the geologically rich state of Alaska. Over the decades he’s carved out a unique artistic career becoming well-known for his quirky, off beat fish-centric humor. Over the course of his career he began to establish working relationships with numerous marine biologists and ichthyologists and eventually found himself returning to his first love in life, paleontology.

Ray’s talk will be held in the College Creek: Great Hall, 2:00-4:00 pm, on Wednesday, February 27, 2019.

Stephanie Steffen Biological Sciences

Biological Sciences Seminar - Grant Flowers, PhD, Yale University, will present “Identifying genes essential for salamander limb regeneration”.

Salamanders have unparalleled abilities to regenerate entire limbs, brain regions, and organs after injury, and the study of these abilities may provide insights toward human regenerative therapies. Recent advances in our understanding of the genome of one such species, the axolotl, combined with novel gene-editing techniques now permit the investigation of the molecular origins of these abilities. These tools have allowed us to assess the contributions of multiple low frequency cell lineages to the regenerating limb at once. Our comparisons reveal that regenerated limbs are high fidelity replicas of the originals even after repeated amputations. We are now applying these methods to carry out a high throughput screen to identify novel genes essential for limb regeneration.

Date:  Friday, February 22, 2019
Time:  4:00 PM
Location:  Sci B 133

Week of: Feb 10, 2019

Lindsay R CPS

HSU’s College of Professional Studies announces Live at HSU Folkdown: A Benefit for Students of HSU’s College of Professional Studies.

This benefit concert will be held at Fulkerson Recital Hall on Saturday, February 23rd, from 7:00-8:45pm. Music will be performed by talented HSU faculty, staff, and administrators including well-known local bands Tyger Byle and For Folk Sake, plus songs by Wayne Brumfield and Lonyx Landry.

Doors open at 6:30pm. Tickets are $15 for general admission and $6 for HSU Students (with student ID) available online or in-person at Center Arts and at the door. Proceeds will support the success of students of HSU’s College of Professional Studies.

The College of Professional Studies is committed to providing interdisciplinary liberal arts education and preparation for the profession so our graduates can positively contribute to the human condition, be outstanding leaders in their profession and community, and share a powerful commitment to social, economic, and environmental justice. Your support not only helps today’s HSU students, but ensures that our students can contribute to making a difference in the lives of those around them.

Tickets available at: https://centerarts.humboldt.edu/Online/seatSelect.asp?BOset::WSmap::seatmap::performance_ids=83149BC1-BA69-45DD-8CF9-17755BB81E52

For more information about the event, please contact 707-826-3961 or .

Stephanie Steffen Biological Sciences

Biological Sciences Seminar - Zachary Lewis, PhD, Yale University will present “Lung loss in salamanders”.

Lungs were once thought to be a universal feature of tetrapods and completely essential to life on land. This view changed in the late 19th century with the discovery of several adult salamanders without lungs. These species had descended from ancestors with lungs, suggesting that an evolutionary loss of lungs had occurred. I discuss the developmental basis for lung loss in salamanders and demonstrate that gene regulatory evolution results in lung loss. I demonstrate that lungless salamanders produce pulmonary surfactant in their skin, which may help lungless salamanders compensate for the loss of pulmonary respiration.

Date: Friday, February 15, 2019
Time: 4:00 PM
Location: Science B 133

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