The Insect Ovary: Ultrastructure, previtellogenic growth and …
This book will give an overview of insect ovaries, showing the diversities and the common traits in egg growth processes. The idea to write this book developed while looking at the flood of …
Females – ENT 425 – General Entomology - North Carolina State ...
When the insect is actively reproducing, these organs swell with developing eggs and may nearly fill the abdomen. Each ovary is subdivided into functional units (called ovarioles) where the …
Ovariole - Wikipedia
An ovariole is a tubular component of the insect ovary, and the basic unit of egg production. [1] Each ovariole is composed of a germarium (the germline stem cell niche ) at the anterior tip, a …
Ecdysone signalling and ovarian development in insects: from …
2015年2月1日 · Recent research in Drosophila has unveiled key aspects on the role of ecdysone in insect oogenesis. In larvae, it represses and then activates stem cell niche and primordial …
Repeated loss of variation in insect ovary morphology highlights …
2021年5月5日 · Here we perform a test of the hypothesized trade-off between the number and size of offspring using thousands of descriptions of the number of egg-producing …
Ovary Structure and Oogenesis of Trypophloeus klimeschi …
The female reproductive system, ovary structure and ultrastructure of Trypophloeus klimeschi (Coleoptera: Curculionidae: Scolytinae) were investigated using light microscopy, scanning …
Ovarioles - ScienceDirect
2009年1月1日 · Ovarioles are egg-producing tubules that are the fundamental units of ovaries in female insects. The number of ovarioles in each ovary is typically 4–8, but varies widely …
The insect ovary : ultrastructure, previtellogenic growth and …
Features of this unique book include a detailed comparison of ovarian structures from all insect orders; a phylogenetic model of the diversification of insect ovaries; a discussion of new …
The ovary of Ectognatha, the Insecta s. str. | SpringerLink
This chapter will review articles dealing with structure, physiology, some genetic aspects and phylogeny of insect ovaries. Our main interest lies in the ontogenetic development of ovaries …
The insect ovary : ultrastructure, previtellogenic growth and …
The structure of ovary in a representative of the scale insect family Matsucoccidae, Matsucoccus pini, is described at the ultrastructural level and the obtained results are discussed in a …