Interview with Doug McClarnan

Doug McClarnan talks about canoeing on the Kokosing.https://digital.kenyon.edu/lak_interviews/1020/thumbnail.jp

Interview with Doug Gifford

Doug Gifford, of the Soil and Water Conservation Office of Mt. Vernon, discusses: airating fields, soil erosion, and improved weed-killing strategies.https://digital.kenyon.edu/ffp_interviews/1030/thumbnail.jp

Corporations, Classes, and Social Movements After Managerialism

http://deepblue.lib.umich.edu/bitstream/2027.42/51348/1/584.pd

Identifying Lepidopteran resistance within hcf mutants

Abstract only availableSouthwestern corn borer (SWCB) and fall armyworm (FAW) feeding on maize causes extensive crop damage in the United States. Previous proteomic analysis comparing resistant and susceptible lines of maize indicates genes found in the photosystem II pathway are highly expressed in the resistant line. The high chlorophyll fluorescence (hcf) mutants have defects in photosystem I or photosystem II genes. A preference test was performed comparing hcf mutants to their wild-type siblings. Oy, pg, and g mutants were also compared to their wild-type siblings to ensure that color was not a factor in feeding differences. SWCB preferred the wild-type over hcf11-N1205A and hcf49-N1480 mutants, indicating these genes may be resistance factors. Oy1-Andrew and hcf13-N1097B mutants were preferred by SWCB compared to their wild-type siblings, indicating these genes increase susceptibility to feeding damage. hcf49-N1480, hcf7-N1029D, and pg15-N340B had reduced FAW damage compared to wild-type siblings, indicating they may increase resistance to feeding damage. hcf44-N1278B showed increased susceptibility to FAW feeding compared to its wild-type sibling. An antibiosis test was performed using hcf mutants. Photographs and larval weights were taken at the end of the four days. Tissue damage areas were analyzed using AlphaEaseFC software. From the data, hcf7-N1029D and hcf50-N1481 had reduced larval weights for both FAW and SWCB indicating these genes have antibiotic properties and can reduce larval feeding damage. The mutants evaluated for effects of pigmentation displayed varying results indicating color differences associated with some hcf mutants are unlikely to be responsible for the differences in feeding behavior observed. These genes identified here may be useful in increasing resistance to FAW and SWCB in commercial hybrids.MU Monsanto Undergraduate Research Fellowshi

Identifying Lepidopteran resistance within hcf mutants

Abstract only availableSouthwestern corn borer (SWBC) and fall armyworm (FAW) feeding on maize causes extensive crop damage in the United States. Total crop loss is valued at approximately 300 million dollars annually. Previous proteomic analysis comparing resistant and susceptible lines of maize has shown genes found in the photosystem II pathway are highly expressed in the resistant line. The high chlorophyll fluorescence mutants have defects in photosystem I or photosystem II genes. Preliminary feeding trials indicate hcf mutants have resistance to Lepidopteran feeding. A preference test was performed comparing hcf mutants to their wild-type siblings. Oy , pg , and g mutants were also compared to their wild-type siblings to ensure that the pigmentation was not a factor in insect resistance. Leaf tissue from both the hcf mutant and the wild-type plant were pinned to a piece of moist filter paper within a petri dish. A single SWCB or FAW was placed in between the two samples and allowed to choose which tissue sample it preferred. There were five replicates per genotype. Pictures were taken after four days and tissue damage area was assessed using AlphaEaseFC software. A few hcf mutants showed increased resistance to feeding than their wild-type siblings, while most hcf mutants did not. SWCB preferred the wild-type over hcf11-N1205A and hcf49-N1480 mutants, indicating these genes may be resistance factors. Some hcf mutants were preferred by SWCB, indicating they may represent susceptibility genes. These genotypes were Oyl-Andrew and hcf13-N1097B . hcf49-N1480 , hcf7-N1029D , and pg15-N340B had reduced FAW damage compared to wild-type siblings, indicating they may confer resistance. The genotype hcf44-N1278B showed increased susceptibility to FAW feeding compared to its wild-type sibling. Further analysis will be needed to examine the resistance capabilities of the hcf11-N1205A , hcf7-1029D , pg15-N340B , and hcf49-N1480 genotypes. The mutants evaluated for effects of pigmentation displayed varying results indicating color differences associated with some hcf mutants are unlikely to be responsible for the differences observed. This experiment has provided data showing that some hcf mutants confer resistance to insect feeding. These genes may be useful in increasing resistance to FAW and SWCB in commercial hybrids.Life Sciences Mission Enhancement Progra

Lepidopteran preference test of Glossy mutants and Glossy15 allels for maize resistance [abstract]

Abstract only availableFaculty Mentor: Georgia Davis, AgronomyEvery year fall armyworm and Southwestern corn borer cause severe yield loss in maize. Both fall armyworm and the Southwestern corn borer are known to specifically attack the whorl leaf tissue resulting in major crop losses. Over the past few years maize resistant lines have been developed. In our study we have compared the larval feeding habits of both insects on resistant and susceptible genotypes, and on maize mutants that affect epicuticular wax formation. A previous study has shown that the Glossy15 and Glossy8 genes have Lepidopteran resistance in maize during the whorl stage. Our objectives in this study are to analyze both fall armyworm and Southwestern corn borer feeding preferences on various glossy mutants, and to further examine thier feeding habits on different alleles of the Glossy15 gene. In both studies we compared feeding preferences on three inbreds ( Mp705, Oh28, and Va35 ) to the glossy mutants. Mp705 has resistance to whorl stage Lepidopteran feeding while Oh28 and Va35 are susceptible. An inbred adult leaf was placed directly next to a glossy mutant adult leaf in a Petri dish. We then placed a single larva between the two adult leaves. We evaluated the larvae preference by using the AlphaEaseFC software. With this software we measured the areas of damaged leaf tissue. In the first study we have concluded that the adult leaves of bm1 , Gl1 , gl2-PF , Gl3 , Gl7 , Gl14 , and gl15-Sprague are very susceptible to insect feeding. There was no preference for adult leaves of bm4 , Gl4 , Gl11 , gl3-N531 , gl13-U440B , Gl18 , gl18-N166A , and Gl21 . However, we have found that Gl8 , gl15-KEW , and gl15-LAM exhibit some resistance. We also examined insect preference on different allels of Glossy15 gene. We observed allelic differences; gl15-63 and gl15-L are susceptible to insect feeding, while gl15-S , gl15-H , gl15-956 , and gl15-94317 have no preference. The goal of this study is to determine which mutants and alleles are more resistant than the others. The resistant alleles can then be inserted into different maize lines to improve resistance to Lepidopteran insects

Quantitative trait loci for seminal root angle and number in the maize IBM population

Abstract only availableIn maize, seminal roots develop and the primary root system deteriorates as the plant matures. The seminal roots comprise the majority of the root system of the adult plant and give the plant stability against lodging. Because seminal roots are the primary means of water uptake in the adult plant, their development under drought conditions is vital. Previous research has suggested that seminal root angle and abscisic acid (ABA) level are correlated in maize. Additional research has shown that ABA levels are related to drought tolerance. This study focuses on identifying quantitative trait loci (QTL) that affect seminal root angle and the number of seminal roots entering the soil from each node. The QTL generated for seminal root angle and number per node can then be used to evaluate the relationship with drought tolerance. A set of 94 mapping lines from the intermated B73 x Mo17 (IBM) mapping population was used to measure the angle between the seminal root and the stalk. The number of seminal roots entering the soil from the first two nodes was measured as well. Molecular markers evenly distributed throughout the genome were used to run the QTL analysis using QTL Cartographer Version 1.16. The following QTL analyses were run: seminal root angle, number of roots entering soil from the first node above ground, and number of roots entering soil from the second node. Three QTL were found for seminal root angle, two QTL for the number of roots at the first node above ground, and three QTL for the number of roots at the second node above ground. These QTL positions were then compared to previously known QTL for drought tolerance and root traits.Plant Genomics Internship @ M

Writing the Nation: A Concise Introduction to American Literature 1865 to Present

Writing the Nation: A Concise Guide to American Literature 1865 to Present is a text that surveys key literary movements and the American authors associated with the movement. Topics include late romanticism, realism, naturalism, modernism, and modern literature. Accessible files with optical character recognition (OCR) and auto-tagging provided by the Center for Inclusive Design and Innovation.https://oer.galileo.usg.edu/english-textbooks/1004/thumbnail.jp

Determining effects of an all weather logging road on winter woodland caribou habitat use in south-eastern Manitoba

The Owl Lake boreal woodland caribou population is the most southerly population in Manitoba. It is provincially ranked as a High Conservation Concern Population. Forestry operations exist in the area and there are plans for further forest harvest and renewal. The Happy Lake logging road is the only main access through the Owl Lake winter range. This logging road is currently closed to the public and access is limited to forestry operations during specific times of the year. An integrated forestry/caribou management strategy for the area provides for the maintenance of minimum areas of functional habitat. Habitat quality along the road was compared to habitat quality in the winter core use areas, within the winter range and outside the winter range. To evaluate the extent of functional habitat near the road, we conducted animal location and movement analysis using GPS data collected from January 2002 to March 2006. Habitat quality in the winter range, core use areas and along the road were assessed and found to be similar. Analysis of caribou locations and movement illustrate less use of high quality habitat adjacent to the Happy Lake Road. Loss of functional habitat is suggested to occur within 1 kilometre of the road. This potential loss of functional habitat should be incorporated into integrated forestry and caribou conservation strategies. Road management is recommended to minimize the potential sensory disturbance and associated impacts of all weather access on boreal woodland caribou

Writing The Nation

A concise introduction to American Literature from 1865 to present. The book is broken into chapters based on time period and writing style from Late Romanticism to recent post-modernism