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General ovarian structure in this lizard is similar to that of other lizards. The paired organs are hollow, thin\u2010walled sacs containing follicles in roughly 3 to 4 size classes. Ovarian germinal tissue consists of oogonia (diploid cells which divide mitotically) and oocytes (meiotic cells), intermixed with ovarian surface epithelial cells. Germ cells reside in two dorsal patches of epithelium per ovary (germinal beds), as is common in lizards. Oogonia in interphase show a highly dispersed chromatin pattern. Within oogonia cytoplasm, Golgi complexes are scarce, rough endoplasmic reticulum is absent, and lipid droplets are rare. Ribosomes are scattered in small clusters. Small, round vesicles are common in all oogonia; glycogen\u2010like granules are present in some. Mitochondria form a juxtanuclear mass within which groups of several mitochondria surround a dense granule. \u201cNuage\u201d granules also are found unassociated with mitochondria. Oocytes are present in stages of meiotic prophase up to diplotene. Synaptinemal complexes are seen in several (pachytene) cells. The cytoplasm of oocytes differs from that of oogonia in that mitochondria do not form groups, and nuage and glycogen are absent, whereas small round vesicles and large irregular vesicles are common. The ultrastructural similarities in germ cells of a reptile as compared to those of other vertebrates strengthens the notion that germ\u2010line cells possess (or lack) qualities related to the undifferentiated state of these cells.<\/jats:p>","DOI":"10.1002\/jmor.1051780304","type":"journal-article","created":{"date-parts":[[2005,2,24]],"date-time":"2005-02-24T18:06:42Z","timestamp":1109268402000},"page":"247-265","source":"Crossref","is-referenced-by-count":17,"title":["The ultrastructure of germinal beds in the ovary of <i>Gerrhonotus coeruleus<\/i> (Reptilia: Anguidae)"],"prefix":"10.1002","volume":"178","author":[{"given":"Lorrie L.","family":"Klosterman","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2005,2,6]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1083\/jcb.21.3.397"},{"key":"e_1_2_1_3_1","first-page":"195","article-title":"An ultrastructural study of primordial germ cells, oogonia and early oocytes in Xenopus laevis","volume":"26","author":"Al\u2010Mukhtar K. 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