Joint Evolution of Asexuality and Queen Number in an Ant

A recent paper in Current Biology by DeWayne Shoemaker and colleagues from the University of Georgia describes a socially polymorphic population of the tropical fire ant, Solenopsis geminata, in which multi-queen colonies produce queens asexually but produce workers sexually via matings with males from the sexually reproducing single-queen social form. Two distinct asexual lineages from multi-queen colonies likely originated from the same sexual single-queen population. Multiple asexual/polygyne genomes are transmitted undiluted in this system, but sterile workers produced with sperm from a sexually-reproducing/monogyne population are necessary for the persistence of these lineages. The intersection of social polymorphism, facultative asexuality, and genetic caste determination marks this population of S. geminata as an embodiment of the diversity of ant reproductive systems and suggests previously…

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Bee Campus Celebration

This year, to celebrate National Arbor Day, which every year is held on the last Friday in April, we will celebrate our efforts in becoming a Bee Campus Certified University. There will be a ceremony followed by a pollinator planting event. Be sure to stop by to hear from faculty and students about the important role bees and pollinators play in our community.

When: Friday, April 26 at 12:00pm to 2:00pm

Where: Fred D. Brown Jr. Residence Hall, Amphitheater Lawn, 1817 Andy Holt Avenue, Knoxville, TN 37996

Please visit website for more information.

 

 

Dr. Frank Hale’s ‘Traveling Elixir of Ornamental Ailments’ comes to UTIA

This exhibit showcases the variety of insects that damage ornamental plants in landscape and nursery settings in Tennessee. If you want to know what that “bug” on your azaleas is or what borer is killing your dogwoods, Frank will show you what it looks like, as well as offer advice on how to control it. Please drop by to look at his specimens or to ask him specific control questions!! Whatever the reason, drop by on Friday and say “hi”! Presented by: Dr. Frank Hale, Professor, Extension Entomology Specialist (Soil, Plant and Pest Center, Nashville) Location: Hollingsworth Auditorium, Ellington Plant Sciences Building Date & Time: 9:00 am – 2:00 pm, Friday, April 12, 2019 Sponsored by: EPP 410 [Diseases and…

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Dr. Mark Windham Selected for Rose Jury Position at Biltmore Estate

Since 2011, Biltmore Estate has run international rose trials where rose breeders and growers submit new roses for a two-year trial. Winning roses from the trials are considered to be some of the best roses in the world. Dr. Mark Windham has been invited to become a permanent judge for the International Jury for the Biltmore International Rose Trials competition. Additionally, he has been selected to participate in the annual formal international judging, which is attended by rose enthusiasts from across the globe. These invitations are a very big honor in the “rose world.” Dr. Windham was not chosen for his ability to grow roses (very modest skills at best), but for his ongoing research on rose diseases and for…

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Remembering Dr. Carroll Southards

The Entomology and Plant Pathology Department was saddened by the news of the passing of Dr. Carroll J. Southards on January 2, 2019. Dr. Southards joined the department (previously called Ag Biology) in 1965 as an assistant professor in Nematology. In 1974, Dr. Southards became head of the department of Ag Biology and under his leadership, the departmental name was changed to the Department of Entomology and Plant Pathology. During Dr. Southards 20+ year tenure as department head, the department grew and flourished. Among his achievements were increasing diversity within the department and the development of departmental programs that assisted the citizenry of Tennessee. He also served as counselor to the President of the UT System from 1979-1981. Faculty, staff…

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