Annotation of segmentation pathway genes in the Asian citrus psyllid, Diaphorina citri.

ABSTRACT: Insects have a segmented body plan that is established during embryogenesis when the anterior-posterior (A-P) axis is divided into repeated units by a cascade of gene expression. The cascade is initiated by protein gradients created by translation of maternally provided mRNAs, localized at the anterior and posterior poles of the embryo. Combinations of these proteins activate specific gap genes to divide the embryo into distinct regions along the anterior-posterior axis. Gap genes then activate pair-rule genes, which are usually expressed in parts of every other segment. The pair-rule genes, in turn, activate expression of segment polarity genes in a portion of each segment. The segmentation genes are generally conserved among insects, although there is considerable variation in how they a

SUBMITTER: Miller S 

PROVIDER: S-EPMC9632033 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature