We have identified and characterized the sequence and expression of two Group B Sox genes in the acorn worm, Ptychodera flava. One sequence represents a Group B1 Sox gene and is designated Pf-SoxB1; the other is a Group B2 Sox gene and is designated Pf-SoxB2. Both genes encode polypeptides with an HMG domain in the N-terminal half. Whole-mount in situ hybridization to embryonic and larval stage...

The genus Carex belongs to tribe Cariceae, subfamily Caricoideae and family Cyperaceae. This genus, with about 2000 species in the world and more than 50 species in Iran, is the largest genus among the family. In expedition to North West and West of Iran, two species, namely, Carex acuta and C. cilicica as new records and C. flava, C. rostrata and C. supina as reinvestigated species are reporte...

The segmental and zonal variations in the quantitative relationships between elastic and collagen fibers within the lateral costotransverse ligaments have been investigated in the vervet monkey. The lateral costotransverse ligaments of the caudal segments have a largely elastic structure in contrast to those of the cranial segments, which are characteristically collagenous. In the transitional ...

Literature on the anatomy of the human vertebral column characterizes the shape of the lumbar vertebral canal as triangular. The purpose of the present study was to determine the precise shape of the lumbar vertebral canal. Ten lumbar vertebral columns of adult male cadavers were dissected. Two transverse sections were performed in the third lumbar vertebra. One section was performed at the lev...