✦ LIBER ✦
Anterior-posterior pattern formation: An evolutionary perspective on genes specifying terminal domains
✍ Scribed by Teresa R. Strecker; Judith A. Lengyel
- Book ID
- 102760403
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 606 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0265-9247
No coin nor oath required. For personal study only.
✦ Synopsis
The Drosophila anterior-posterior pattern genes of the terminal class, particularly the tailless gene, aflect structures derived from the acron and the tail region of the embryo. These domains correspond in position and function to asegmental domains at the termini of annelids and more primitive insect embryos. This suggests that terminal genes in Drosophila may have originated in an an- cestor common to both annelids and arthropods, and thus that the specification of termini in these metameric
organisms is an ancient, evolutionarily conserved process.