Multiple QTL for horticultural traits and quantitative resistance to Phytophthora infestans linked on Solanum habrochaites chromosome 11.

Previously, a Phytophthora infestans resistance QTL from Solanum habrochaites chromosome 11 was introgressed into cultivated tomato (S. lycopersicum). Fine mapping of this resistance QTL using near-isogenic lines (NILs) revealed some co-located QTL with undesirable effects on plant size, canopy density, and fruit size traits. Subsequently, higher-resolution mapping with sub-NILs detected multiple P. infestans resistance QTL within this 9.4-cM region of chromosome 11. In our present study, these same sub-NILs were also evaluated for 17 horticultural traits, including yield, maturity, fruit size and shape, fruit quality, and plant architecture traits in replicated field experiments over 2 years. The horticultural trait QTL originally detected by fine mapping each fractionated into two or more QTL at higher resolution. A total of 34 QTL were detected across all traits, with 14% exhibiting significant QTL × environment interactions (QTL × E). QTL for many traits were co-located, suggesting either pleiotropic effects or tight linkage among genes controlling these traits. Recombination in the pericentromeric region of the introgression between markers TG147 and At4g10050 was suppressed to approximately 29.7 Mbp per cM, relative to the genomewide average of 750 kbp per cM. The genetic architecture of many of the horticultural and P. infestans resistance traits that mapped within this chromosome 11 S. habrochaites region is complex. Complicating factors included fractionation of QTL, pleiotropy or tight linkage of QTL for multiple traits, pericentromeric chromosomal location(s), and/or QTL × E. High-resolution mapping of QTL in this region would be needed to determine which specific target QTL could be useful in breeding cultivated tomato

Interclutch variability in egg characteristics in two species of rail: Is maternal identity encoded in eggshell patterns?

© 2022 Johnson, McRae. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Maternal signatures are present in the eggs of some birds, but quantifying interclutch variability within populations remains challenging. Maternal assignment of eggs with distinctive appearances could be used to non-invasively identify renesting females, including hens returning among years, as well as to identify cases of conspecific brood parasitism. We explored whether King Rail (Rallus elegans) eggs with shared maternity could be matched based on eggshell pattern. We used NaturePatternMatch (NPM) software to match egg images taken in the field in conjunction with spatial and temporal data on nests. Since we had only a small number of marked breeders, we analyzed similar clutch images from a study of Eurasian Common Moorhens (Gallinula chloropus chloropus) with color-banded breeders for which parentage at many nests had been verified genetically to validate the method. We ran 66 King Rail clutches (n = 338 eggs) and 58 Common Moorhen clutches (n = 364 eggs) through NPM. We performed non-metric multidimensional scaling and permutational analysis of variance using the best egg match output from NPM. We also explored whether eggs could be grouped by clutch using a combination of egg dimensions and pattern data derived from NPM using linear discriminant analyses. We then scrutinized specific matches returned by NPM for King Rail eggs to determine whether multiple matches between the same clutches might reveal maternity among nests and inform our understanding of female laying behavior. To do this, we ran separate NPM analyses for clutches photographed over several years from two spatially distant parts of the site. With these narrower datasets, we were able to identify four instances where hens likely returned to breed among years, four likely cases of conspecific brood parasitism, and a within-season re-nesting attempt. Thus, the matching output was helpful in identifying congruent egg patterns among clutches when used in conjunction with spatial and temporal data, revealing previously unrecognized site fidelity, within-season movements, and reproductive interference by breeding females. Egg pattern data in combination with nest mapping can be used to inform our understanding of female reproductive effort, success, and longevity in King Rails. These methods may also be applied to other secretive birds and species of conservation concern.ECU ALS PLOS Institutional Account Progra

Women in higher education: A brief report on stress during COVID-19

Higher education institutions have evolved into a more stressful environment. Women have been experiencing higher levels of stress than their male counterparts. With higher education adopting to the onset of the pandemic, this brief report studied women’s perceived stress in relation to perceived organizational and supervisory support, and age during times of crisis. In an era of social distancing, quarantines, and lockdowns, the findings suggest that women’s perceived stress is negatively related to age, perceived organizational support, and perceived supervisory support. Society as we once knew it pre-pandemic will never be the same. Higher education is inevitably going to have to manage the aftermath, a new normal that can only be as effective as the employees that help keep the organization running

Sequential emergence and clinical implications of viral mutants with K70E and K65R mutation in reverse transcriptase during prolonged tenofovir monotherapy in rhesus macaques with chronic RT-SHIV infection.

BackgroundWe reported previously on the emergence and clinical implications of simian immunodeficiency virus (SIVmac251) mutants with a K65R mutation in reverse transcriptase (RT), and the role of CD8+ cell-mediated immune responses in suppressing viremia during tenofovir therapy. Because of significant sequence differences between SIV and HIV-1 RT that affect drug susceptibilities and mutational patterns, it is unclear to what extent findings with SIV can be extrapolated to HIV-1 RT. Accordingly, to model HIV-1 RT responses, 12 macaques were inoculated with RT-SHIV, a chimeric SIV containing HIV-1 RT, and started on prolonged tenofovir therapy 5 months later.ResultsThe early virologic response to tenofovir correlated with baseline viral RNA levels and expression of the MHC class I allele Mamu-A*01. For all animals, sensitive real-time PCR assays detected the transient emergence of K70E RT mutants within 4 weeks of therapy, which were then replaced by K65R mutants within 12 weeks of therapy. For most animals, the occurrence of these mutations preceded a partial rebound of plasma viremia to levels that remained on average 10-fold below baseline values. One animal eventually suppressed K65R viremia to undetectable levels for more than 4 years; sequential experiments using CD8+ cell depletion and tenofovir interruption demonstrated that both CD8+ cells and continued tenofovir therapy were required for sustained suppression of viremia.ConclusionThis is the first evidence that tenofovir therapy can select directly for K70E viral mutants in vivo. The observations on the clinical implications of the K65R RT-SHIV mutants were consistent with those of SIVmac251, and suggest that for persons infected with K65R HIV-1 both immune-mediated and drug-dependent antiviral activities play a role in controlling viremia. These findings suggest also that even in the presence of K65R virus, continuation of tenofovir treatment as part of HAART may be beneficial, particularly when assisted by antiviral immune responses

Decision Models for Foreclosed Housing Acquisition and Redevelopment: A University of Massachusetts Multi-Campus Collaborative Project - Processes and Findings to Date

The recent housing foreclosure crisis has had devastating impacts on individuals, communities, organizations and government. In response, several community development corporations (CDCs) have sought new ways to assist neighborhoods suffering from the myriad effects of high foreclosures, including neighborhood instability, increased vandalism and crime, lower property values, and economic disinvestment. This research project focuses on activities of community-based organizations that acquire and redevelop foreclosed properties to support neighborhood stabilization and revitalization. However, the costs of pursuing this strategy far exceed the resources available to typical CDCs. Thus, our project seeks to solve the following decision problem: What subset of a large number of available foreclosed properties should be acquired for neighborhood stabilization and revitalization? What activities should be pursued with which properties, when should they be pursued, and to what degree? The decision models we intend to develop will yield acquisition policies that are more efficient, effective, and equitable for CDCs and their community residents. Our goal is to develop theory, models and methods that benefit from the knowledge of practitioners while providing practitioners with novel tools and perspectives that enable them to better achieve their organizations’ missions. This document lays out our knowledge to date on the scope and magnitude of the foreclosure crisis, the policy responses and actions by local CDCs to mitigate the effects of foreclosures, and the next steps in our research project, which include applying our expertise to the experiences of community partner organizations to develop models and inform theory and practice

Title IX and Menstruation or Related Conditions

Title IX protects against sex-based discrimination and harassment in covered education programs and activities. The Biden Administration\u27s recently proposed Title IX regulations do not, however, include discrimination on the basis of menstruation or related conditions as a form of discrimination based on sex. This comment on the proposed regulations explains why the regulations should include conditions related to menstruation and recommends changes for how to do so

Title IX and Menstruation or Related Conditions

Title IX of the Education Amendments Act of 1972 (“Title IX”) prohibits sex discrimination in educational programs or activities receiving federal financial assistance. Neither the statute nor its implementing regulations explicitly define “sex” to include discrimination on the basis of menstruation or related conditions such as perimenopause and menopause. This textual absence has caused confusion over whether Title IX must be interpreted to protect students and other community members from all types of sex-based discrimination. It also calls into question the law’s ability to break down systemic sex-based barriers related to menstruation in educational spaces. Absent an interpretation that there is explicit Title IX coverage, menstruation will continue to cause some students to miss instruction. Other students may be denied access to a menstrual product or a restroom as needed and face health consequences. They also may be teased and bullied after menstrual blood visibly leaks onto their clothes. Employees, who are also covered by Title IX, may be fired for damaging school property as a result of such leaks.1 People in perimenopause may be denied reasonable modifications like bathroom access, water, or temperature control. Collectively, this creates an educational system that prevents students, faculty, or employees from fully participating in educational institutions and causes harm

Title IX and Menstruation or Related Conditions

Title IX of the Education Amendments Act of 1972 (“Title IX”) prohibits sex discrimination in educational programs or activities receiving federal financial assistance. Neither the statute nor its implementing regulations explicitly define “sex” to include discrimination on the basis of menstruation or related conditions such as perimenopause and menopause. This textual absence has caused confusion over whether Title IX must be interpreted to protect students and other community members from all types of sex-based discrimination. It also calls into question the law\u27s ability to break down systemic sex-based barriers related to menstruation in educational spaces. Absent an interpretation that there is explicit Title IX coverage, menstruation will continue to cause some students to miss instruction. Other students may be denied access to a menstrual product or a restroom as needed and face health consequences. They also may be teased and bullied after menstrual blood visibly leaks onto their clothes. Employees, who are also covered by Title IX, may be fired for damaging school property as a result of such leaks. People in perimenopause may be denied reasonable modifications like bathroom access, water, or temperature control. Collectively, this creates an educational system that prevents students, faculty, or employees from fully participating in educational institutions and causes harm. On July 12, 2022, the U.S. Department of Education (“DOE”) issued a Notice of Proposed Rulemaking “to better align the Title IX regulatory requirements with Title IX\u27s nondiscrimination mandate, and to clarify the scope and application of Title IX and [schools\u27 obligations] to provide an educational environment free from discrimination on the basis of sex, including through responding to incidents of sex discrimination.” On September 12, 2022, the Authors submitted the below Comment asking the DOE to modify existing regulations to cover menstruation-related discrimination in three ways. First, the regulations should include “menstruation or related conditions” from menarche through menopause in the scope of discrimination on the basis of sex. Second, the regulations should include reasonable modifications for “menstruation or related conditions.” Finally, the regulations should provide education on “menstruation or related conditions” to all students and employees, regardless of sex, to tackle barriers related to reporting and eliminating sex-based discrimination and to provide equal access. Only then will Title IX be able to fully live up to its nondiscrimination mandate. This Article contains our Comment asking the DOE to make these changes and explicitly include menstruation or related conditions in Title IX\u27s protections. In addition to our Comment, over 150 of the publicly available rulemaking submissions referenced menstruation and over thirty-five mentioned menopause. Collectively, these comments--from other academics, public health scholars, medical practitioners, clinicians, advocates, and individuals--further demonstrate the need for Title IX to cover menstruation-related discrimination

The concluding chapter: Recircumscription of Goodenia (Goodeniaceae) to include four allied genera with an updated infrageneric classification

© 2020. Close scrutiny of Goodenia (Goodeniaceae) and allied genera in the \u27Core Goodeniaceae\u27 over recent years has clarified our understanding of this captivating group. While expanded sampling, sequencing of multiple regions, and a genome skimming reinforced backbone clearly supported Goodenia s.l. as monophyletic and distinct from Scaevola and Coopernookia, there appears to be no synapomorphic characters that uniquely characterise this morphologically diverse clade. Within Goodenia s.l., there is strong support from nuclear, chloroplast and mitochondrial data for three major clades (Goodenia Clades A, B and C) and various subclades, which lead to earlier suggestions for the possible recognition of these as distinct genera. Through ongoing work, it has become evident that this is impractical, as conflict remains within the most recently diverged Clade C, likely due to recent radiation and incomplete lineage sorting. In light of this, it is proposed that a combination of morphological characters is used to circumscribe an expanded Goodenia that now includes Velleia, Verreauxia, Selliera and Pentaptilon, and an updated infrageneric classification is proposed to accommodate monophyletic subclades. A total of twenty-five new combinations, three reinstatements, and seven new names are published herein including Goodenia subg. Monochila sect. Monochila subsect. Infracta K.A. Sheph. subsect. nov. Also, a type is designated for Goodenia subg. Porphyranthus sect. Ebracteolatae (K. Krause) K.A. Sheph. comb. et stat. nov., and lectotypes or secondstep lectotypes are designated for a further three names

Host Species and Captivity Distinguish the Microbiome Compositions of a Diverse Zoo-Resident Non-Human Primate Population

Vast numbers of microorganisms inhabit the mammalian gastrointestinal tract in a complex community referred to as the gut microbiome. An individual’s microbiome may be impacted by genetics, diet, and various environmental factors, and has been associated with many health states and diseases, though specific explanations are lacking. While these communities are well-studied in human populations, non-human primates (NHPs), in particular zoo-resident or captive NHPs, offer distinct advantages to increasing our understanding of factors that influence gut microbiome composition. Here, we characterize the gut microbiome composition of a phylogenetically diverse cohort of NHPs residing in the same urban zoo. We show that despite overlapping and controlled environmental contexts, gut microbiomes are still distinguished between NHP host species. However, when comparing the zoo cohort to wild NHPs, we show that captivity status strongly distinguishes zoo-resident NHPs from their wild counterparts, regardless of host phylogeny. Microbial orders unique to captive NHPs include taxa commonly present in human gut microbiomes. Together, these results demonstrate that differences between NHP species are strongly associated with gut microbiome composition and diversity, suggesting that species-specific approaches should be considered when investigating environmental factors’ influence on gut microbiome composition