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1. Switching it up: algal insights into sexual transitions

   https://doi.org/10.1007/s00497-021-00417-0  

   Coelho, Susana M.; Umen, James (June 2021, Plant Reproduction)

   null (Ed.)

   Abstract While the process of meiosis is highly conserved across eukaryotes, the sexual systems that govern life cycle phase transitions are surprisingly labile. Switches between sexual systems have profound evolutionary and ecological consequences, in particular for plants, but our understanding of the fundamental mechanisms and ultimate causes underlying these transitions is still surprisingly incomplete. We explore here the idea that brown and green algae may be interesting comparative models that can increase our understanding of relevant processes in plant reproductive biology, from evolution of gamete dimorphism, gametogenesis, sex determination and transitions in sex-determining systems. 

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2. Metarhizium: jack of all trades, master of many

   https://doi.org/https://doi.org/10.1098/rsob.200307  

   Raymond, St Leger; Jonathan, Wang (December 2020, Open biology)

   null (Ed.)

   The genus Metarhizium and Pochonia chlamydosporia comprise a monophyletic clade of highly abundant globally distributed fungi that can transition between long-term beneficial associations with plants to transitory pathogenic associations with frequently encountered protozoans, nematodes or insects. Some very common ‘specialist generalist’ species are adapted to particular soil and plant ecologies, but can overpower a wide spectrum of insects with numerous enzymes and toxins that result from extensive gene duplications made possible by loss of meiosis and associated genome defence mechanisms. These species use parasexuality instead of sex to combine beneficial mutations from separate clonal individuals into one genome (Vicar of Bray dynamics). More weakly endophytic species which kill a narrow range of insects retain sexuality to facilitate host–pathogen coevolution (Red Queen dynamics). Metarhizium species can fit into numerous environments because they are very flexible at the genetic, physiological and ecological levels, providing tractable models to address how new mechanisms for econutritional heterogeneity, host switching and virulence are acquired and relate to diverse sexual life histories and speciation. Many new molecules and functions have been discovered that underpin Metarhizium associations, and have furthered our understanding of the crucial ecology of these fungi in multiple habitats. 

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3. Black Womanhood: Raciolinguistic Intersections of Gender, Sexuality & Social Status in the Aftermaths of Colonization

   https://doi.org/10.1162/daed_a_02021  

   Clemons, Aris Moreno; Grieser, Jessica A. (January 2023, Daedalus)

   Abstract In this essay, we highlight the colonial invention of oppositional and binary categories as a dominant form of social sorting and meaning-making in our society. We understand language as a tool for the construction, maintenance, and analysis of these categories. Through language, these categorizations often render those who sit at the margins illegible. We center the Black woman as the prototypical “other,” her condition being interpreted neither by conventions of race nor gender, and take Black womanhood as the point of departure for a description of the necessary intersecting and variable analyses of social life. We call for an exploration of social life that considers the raciolinguistic intersections of gender, sexuality, and social class as part and parcel of overarching social formations. In this way, we can advocate for a shift in linguistics and in all social sciences that accounts for the mutability of category. We argue that a raciolinguistic perspective allows for a more nuanced investigation of the compounding intersections of race, gender, sexuality, and social status that often function to erase Black womanhood. 

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4. Six Principles for Embracing Gender and Sexual Diversity in Postsecondary Biology Classrooms

   https://doi.org/10.1093/biosci/biac013  

   Zemenick, Ash T.; Turney, Shaun; Webster, Alex J.; Jones, Sarah C.; Weber, Marjorie G. (March 2022, BioScience)

   Abstract Sexual and gender minorities face considerable inequities in society, including in science. In biology, course content provides opportunities to challenge harmful preconceptions about what is “natural” while avoiding the notion that anything found in nature is inherently good (the appeal-to-nature fallacy). We provide six principles for instructors to teach sex- and gender-related topics in postsecondary biology in a more inclusive and accurate manner: highlighting biological diversity early, presenting the social and historical context of science, using inclusive language, teaching the iterative process of science, presenting students with a diversity of role models, and developing a classroom culture of respect and inclusion. To illustrate these six principles, we review the many definitions of sex and demonstrate applying the principles to three example topics: sexual reproduction, sex determination or differentiation, and sexual selection. These principles provide a tangible starting place to create more scientifically accurate, engaging, and inclusive classrooms. 

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5. Streaming your Identity: Navigating the Presentation of Gender and Sexuality through Live Streaming

   https://doi.org/10.1007/s10606-020-09386-w  

   Freeman, Guo; Wohn, Donghee Yvette (September 2020, Computer Supported Cooperative Work (CSCW))

   The digital presentation of gender and sexuality has been a long-standing concern in HCI and CSCW. There is also a growing interest in exploring more nuanced presentations of identity afforded in emerging online social spaces that have not been thoroughly studied. In this paper, we endeavor to contribute towards this research agenda in yet another new media context – live streaming – by analyzing female and LGBTQ streamers’ practices to present and manage their gender identity and sexual identity. Our findings highlight streamers’ gender representation and sexual representation as a demonstration of controlling their own bodies, an awareness of the audiences and the resistance to their expectations, and an exhibition of the affordances and power structure of the specific online social space. We extend existing studies on live streaming by exploring the understudied gender identity and sexual identity aspect of the streaming practices. We also highlight the less audience/performance-oriented but more self-driven aspect of digital representations and the importance of affirmation and empowerment in this process.We add nuance to the existing HCI/CSCWstudies on gender and sexuality by investigating a highly dynamic, interactive, and multilayered self-presentation mechanism emerging in live streaming and point to the need for potential new lenses to analyze technology-supported identity construction. 

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