Postdoc News

Texas Wildflowers by Kathy Kimpel, flickr

The Mechanistic Link Between Two Types of Pollen Rejection Systems

July 11, 2018

Postdoctoral Researcher, Federico Roda (Hopkins Lab) investigated the mechanistic link between a plants ability to reject its own pollen and to reject pollen from another species. By performing over 5000 controlled crosses in a group of native Texas wildflowers, Roda and Prof. Hopkins found these two types of pollen rejection systems were highly correlated across individuals and occurred at the same time during pollen development. The study published in...

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Image: Texas Wildflowers by Bill Staney, Flickr

The Evolution of Barriers to Reproduction Between Species

May 18, 2018

The process of species formation involves the evolution of barriers to reproduction between closely related taxa. Sevan Suni’s (Hopkins lab) study in Evolution quantified these barriers between three closely related Texas wildflowers. The study describes patterns in the strength of these barriers to reproduction between species and uses these patterns to understand the evolutionary forces that drive the process of...

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New Spider Family Tree Tries to Untangle the Evolution of Webs

New Spider Family Tree Tries to Untangle the Evolution of Webs

April 27, 2018

A long-running and fiercely debated question among scientists "Did spiders evolve to spin the orb web only once? Or multiple times?" may have an answer in a new study in Current Biology, led by a team of researchers including Gonzalo Giribet and postdoctoral fellow, Rosa Fernández. The research team compared approximately 2,500 genes from 159...

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"Gobble" by John Benson on Flickr

Researchers Study on Avian Neck Flexibility Lays Foundation for Future Evolution Work

July 24, 2017

Birds have highly mobile necks, but the details and evolution of the complex musculoskeletal system is not well-understood. A new study in Frontiers in Zoology led by postdoc, Robert Kambic (S. Pierce Lab), and professors Stephanie Pierce and Andrew Biewener, uses biplanar X-rays on wild turkeys to evaluate the...

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A mated pair of monogamous oldfield mice with their litter in the lab at Harvard. Credit Andrés Bendesky

The Genetic Basis of Parental Care

April 19, 2017

Why are some mice and people monogamous? And, why are monogamous fathers better at parenting? In a study led by Hopi Hoekstra and postdocs, Andrés Bendesky and Jean-Marc Lassance, the answer points to a genetic basis for parental care in monogamous parents that can elvolve independently in males and females. The study published in the latest issue of...

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Opiliones_Harvestmen

The Giribet Lab Sheds Light on The Opiliones Tree of Life

February 23, 2017

Postdocs, Rosa Fernandez and Ana Lucia Tourinho, former graduate student, Prashant P. Sharma and Gonzalo Giribet used transcriptomics on the broadest taxonomic sampling to shed light on the harvestmen (Opiliones) interrelationships.  As well, they pieced together an overview of the general biogeographic patterns of the ancient arthropod group that dates back at least to the times of Pangea. Their study was published in the recent issue of...

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Deer Mouse_Hoekstra Lab

The Hoekstra Lab Discovers Gene for Faster and More Virile Sperm in Promiscuous Mice

October 18, 2016

 

Hopi Hoekstra and lab members, Heidi Fisher (former postdoc), Emily Jacobs-Palmer (former graduate student) and Jean-Marc Lassance's (research associate) new study in Nature Communcations, compares two closely related species, the deer mouse (peromyscus maniculatus) and the oldfield mouse (P. polionotus), and finds the promiscuous deer mouse has a gene that makes their sperm faster and...

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