Williams Professor Wins Grants to Study Evolutionary Genetics

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WILLIAMSTOWN, Mass. — Two grants from the National Science Foundation (NSF) will support ongoing research by Luana Maroja, associate professor of biology at Williams College, into evolutionary genetics. The grants, totaling $137,315, were recently approved by the NSF.

The grants will support two projects Maroja is working on related to speciation and genetics. The first grant, for $91,173, will support collaborative research Maroja and her students are undertaking with Cornell University on the importance of sex chromosomes in speciation, specifically looking at whether genes that do not transfer genetic information from one species to another during hybridization are concentrated on the X chromosome. The project will provide important insights into the genomic architecture of speciation, the role of the X chromosome in reproductive isolation and divergent adaptation, and will contribute to ongoing debates about how differentiation accumulates in genomes over time.  

As part of the project, Maroja and her students will develop evolution workshops aimed to help educate middle and high school students.


The second grant of $46,142 will support a project in collaboration with Union College to understand processes that cause speciation. The project will test if chromosomal rearrangements (CRs) are involved in speciation using three distinct races of fruit flies. Maroja and her students will genetically map speciation phenotypes, male courtship song and female mating preferences for male song between two pairs of fruit fly races to determine certain traits are shared across the species. The project also will test whether CRs act to reduce gene exchange between nascent species by comparing patterns of genomic divergence inside CRs.

As part of this project, Maroja will develop evolution lab workshops aimed to help educate middle and high school students in Williamstown. She also will continue to develop workshops and labs for underserved girls and minorities in a partnership with the Flying Cloud Institute.

Maroja has taught at Williams since 2010. She has a bachelor's and master's degree from the Universidade Federal do Rio de Janeiro, and in 2008 she received a Ph.D. from Cornell.

 


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Williams College Plans Temporary Parking Lot at Former Field House Site

By Stephen DravisiBerkshires Staff

The foundation of the demolished Towne Field House is still visible on the Williams campus.
 
WILLIAMSTOWN, Mass. — Williams College last month secured the town's permission to convert the former site of Towne Field House to a temporary parking lot.
 
In a series of meetings hearings before the Zoning Board of Appeals and the Conservation Commission, the college received a special permit and a negative determination of applicability of the Rivers Protection Act to enable to new use for the lot on Latham Street.
 
Engineer Charlie LaBatt of Guntlow and Associates represented the college before both town panels, stressing each time the temporary nature of the plan.
 
"Five to eight years is what's anticipated, as the college works to solve what's next for that area of campus." Guntlow told the ZBA. "It will help alleviate parking concerns they have while other projects go on around campus that may displace workers and tenants.
 
"This use of this area, which has been dormant for about two years, it was felt was a fairly easy, low-impact and yet beneficial use for the community — five to eight years in the while everyone could benefit from it."
 
LaBatt and college officials who attended the ZBA meeting said that while the planned 66-space lot is intended for college use, it could be available to the public in the evening, on weekend or during college breaks, just like the adjacent existing lot associated with the college's facilities building.
 
The school needed a special permit from the ZBA, in part, because of the temporary lot is an expansion of and will be connected to the existing parking lot, which itself does conform to the bylaw. The lot across from the Weston Field athletic complex extends beyond the front edifice of the facilities building it serves; the bylaw requires parking areas in that district to be set back from the road at least to the profile of the building.
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