Henry Lab
Department of Cell and Developmental Biology
College of Medicine
University of Illinois-Urbana-Champaign
 
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Evolution of Developmental Processes

Our lab is examining developmental events leading to the formation of diverse larval and adult body plans in different marine invertebrates, including a group of protostome phyla collectively referred to as the "Spiralia." The "Spiralia" represent a large group of closely related invertebrate phyla (members of the protostome, "Lophotrochozoa"). Despite the fact that this clade represents nearly 20% of the 30-plus metazoan phyla, relatively little is known of the cellular and molecular mechanisms controlling their development.

Studies point to significant levels of conservation in the functions of a number of transcriptional regulatory networks and cell signaling pathways during development in the Metazoa. Most developmental/molecular studies have been carried out in a relatively small number of model systems, which have been selected for certain experimental advantages. Therefore, the generality of so-called "fundamental" developmental processes within the Spiralia, and the Metazoa in general, is uncertain. Our studies examine the role of key cellular and molecular mechanisms in the establishment of cell fates and axial properties in representatives of the relatively understudied clade, the Spiralia. More recently our work has focused on the slipper snail, Crepidula fornicata, as a model system to carry out this research.

We have recently completed 454 sequencing of a normalized cDNA library representing genes expressed during the first five days of development in Crepidula fornicata. This effort has revealed a tremendous array of developmental genes that we are now beginning to study.

View Videos of Crepidula fornicata

View Supplemental Methods for working with the Slipper Snail, Crepidula fornicata

 

New work has started in the lab to examine the development of the direct-developing snail, Crepidula atrasolea. These snails were collected by Dr. Deirdre Lyons (Duke University).

View Videos of laboratory raised Crepidula atrasolea

View Images of laboratory raised Crepidula atrasolea


This research is funded by N.S.F. Grant IOS 1558061 to J.J.H.