A MORPHOLOGICAL-STUDY OF PRIMORDIAL GERM-CELLS AT PREGASTRULAR STAGES IN THE CHICK-EMBRYO

被引：15
作者：
MUNIESA, P
DOMINGUEZ, L
机构：
[1] Departamento de Anatomia y Embriología y Genética Animal, Facultad de Veterinaria, Zaragoza
来源：
CELL DIFFERENTIATION AND DEVELOPMENT | 1990年 / 31卷 / 02期
关键词：
Annulate lamellae; Chick blastoderm; Germ line origin; Nuage; Primordial germ cell;
D O I：
10.1016/0922-3371(90)90014-N
中图分类号：
Q2 [细胞生物学];
学科分类号：
071009 ; 090102 ;
摘要：
The spatial distribution, germ layer location, number and appearance of primordial germ cells (PGCs) are studied. Blastoderms from stage X (Eyal-Giladi and Kochav, 1976) to stage 2 (Hamburger and Hamilton, 1951) were serially sectioned and distribution patterns of PGCs were reconstructed. The presence of PGCs in clusters was noted at all stages examined. PGCs were found in relation to the epiblast, the primary hypoblast and in the blastocoel, during the whole period under examination. These observations show that PGCs can be directly studied at blastula stages. The results are consistent with observations on an early segregation of chick germ line that begins as early as stage X. © 1990.
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页码：105 / 117
页数：13
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