Navigation Links
K-State researchers study gene regulation in insects

Susan Brown, an associate professor of biology at Kansas State University, is interested in how evolution generates so much diversity in insects shapes and forms.

Take the fruit fly and the beetle, for example. Even though they look very different, they have the same segmented body plan consisting of head, thorax and abdomen, Brown said. They differ, though, in how they make segments in the embryo. Fruit flies make segments all at once; beetles make segments one at a time.

"Imagine slicing a loaf of bread," Brown said. "Segmentation in fruit flies is similar to a pre-sliced loaf of bread. In other insects and even humans, segments are added one at a time, like slicing a loaf of freshly baked bread."

It is this segmentation that is the basis of a paper by Brown and two K-State doctoral students. The appears in a recent edition of Proceedings of the National Academy of Science.

"We wanted to know how the same genes that slice a space like a loaf of bread can also add slices one at a time," Brown said.

According to Brown, the groundwork for this research was laid about 20 years ago when scientists first learned about the genes that regulate embryonic development in the fruit fly. She said one question that many scientists have been asking since is do other insects have those same genes? If they do, what role do these genes play to give insects such different ways of making segments?

Researchers first identified the genes associated with segmentation and discovered other insects, as well as humans, possessed the genes. But they wondered if the genes functioned the same in every organism.

"We figured that it would be good to start with another insect -- but an insect that looks very different," Brown said. "A fruit fly has a very specific shape and a beetle looks quite different. We thought it would be a good place to start, since they also develop very differently.

"Once the genes involved in segmentation we re identified in other insects, we asked if they function the same as in fruit flies. If the function of these genes is eliminated, can the beetle still make segments?"

According to Brown, some of the genes that make segments in fruit flies are also needed to make segments in beetles. Other genes were found not to be needed.

"These results will help us decide which genes to investigate in other insects and arthropods to better understand the basic process of segmentation and how it is regulated at the genetic level," Brown said.


'"/>

Source:Kansas State University


Related biology news :

1. K-State professors discover enzyme responsible for creation of a beetles hard shell
2. K-State researchers study insects immune system
3. K-Staters design and build a low-cost remote sensing tool for environmental studies
4. NYU researchers simulate molecular biological clock
5. Vital step in cellular migration described by UCSD medical researchers
6. ASU researchers finds novel chemistry at work to provide parrots vibrant red colors
7. UCSD researchers maintain stem cells without contaminated animal feeder layers
8. Why do insects stop breathing? To avoid damage from too much oxygen, say researchers
9. New protein discovered by Hebrew University researchers
10. First real-time view of developing neurons reveals surprises, say Stanford researchers
11. Agilent Technologies releases automated literature search tool for biology researchers
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/24/2017)... 2017 The Controller General of Immigration from Maldives ... Algeen have received the prestigious international IAIR Award for the most ... Reading ... Maldives ... Abdulla Algeen (small picture on the right) have received the IAIR award ...
(Date:3/22/2017)... Lithuania , March 21, 2017   ... and object recognition technologies, today announced the release ... kit (SDK), which provides improved facial recognition using ... cameras on a single computer. The new version ... to improve accuracy, and it utilizes a Graphing ...
(Date:3/20/2017)... , March 20, 2017 PMD Healthcare announces ... spirometer and Wellness Management System (WMS), a remote, real-time ... in 2010, PMD Healthcare is a Medical Device, Digital ... mission dedicated to creating innovative solutions that empower people ... that intent focus, PMD developed the first ever personal ...
Breaking Biology News(10 mins):
(Date:5/24/2017)... , May 23, 2017 As Ebola resurfaces ... with four deaths and 20 suspected cases now reported, a ... the PubMed database, showed a correlation between the 2014 and ... Replikin counts rose sharply in 2012-13, which preceded the 2014 ... in the Ebola gene Replikin counts in 2014-15, which again ...
(Date:5/23/2017)... ... May 23, 2017 , ... A recent survey conducted by ... and difficult to control weed in 12 categories of broadleaf crops, fruits and vegetables, ... scientists across the U.S. and Canada participated in the 2016 survey, the second conducted ...
(Date:5/23/2017)... , ... May 23, 2017 , ... ... this month its 20th anniversary, marking the occasion with a strong presence at ... meeting’s Welcome Reception and further extends an invitation to all attendees to view ...
(Date:5/23/2017)... ... May 22, 2017 , ... A ... in San Diego, California, this August will feature high-level speakers on quantum devices, ... , SPIE Optics and Photonics, the largest multidisciplinary optical sciences meeting in North ...
Breaking Biology Technology: