Ovarian follicle maturation and ovulation: an integrated perspective

Patiño, Reynaldo; Thomas, Peter; Yoshizaki, Goro

doi:10.1023/b:fish.0000030565.74702.0a

Cited by 189 publications

(274 citation statements)

References 20 publications

Supporting

Mentioning

249

Contrasting

Unclassified

Order By: Relevance

“…There are two main stages during the development of the oocytes in teleosts: the gonadotrophins-independent primary growth, and the secondary growth which is dependent on gonadotrophins (SELMAN & WALLACE 1989, TYLER & SUMPTER 1996. The perinucleolar stage takes place during the primary growth while the vitellogenesis occurs during the secondary growth (PATIÑO & SULLIVAN 2002). During follicle formation morphologic changes take place in the nucleus, ooplasm, zona radiata and follicular cells (GRIER 2000).…”

Section: Ormes) Mes) Mes) Mes) Mes)mentioning

confidence: 99%

Reproductive apparatus and gametogenesis of Lophiosilurus alexandri Steindachner (Pisces, Teleostei, Siluriformes)

et al. 2007

View full text Add to dashboard Cite

The gonad morphology and gametogenesis of Lophiosilurus alexandri Steindachner, 1877 from Santo Antônio river (Minas Gerais, Brazil) were studied through anatomical and histological techniques. Examination of the testis revealed that they were paired, fringed organs with two distinct regions: cranial spermatogenic and caudal spermatogenic and secretory. The cranial region represents ca. 60% of the mature/maturing testis, containing 41 to 73 fringes, while the caudal portion represents ca. 40% and contains 44 to 68 fringes. At the cranial portion the length of the fringes was 3.70 ± 1.70 mm and in the caudal portion was 0.20 ± 0.10 mm. The spermatogenesis was cystic, synchronic, and occurred throughout the whole extension of the seminiferous tubules. The ovaries were saculiforms, paired organs, which present ovigerous lamellae containing cells of the oogenic lineage. The oocytes were classified into four developmental stages according to their cytological characteristics and the characteristics of the cell layers that surround them.

show abstract

Section: Ormes) Mes) Mes) Mes) Mes)mentioning

confidence: 99%

Reproductive apparatus and gametogenesis of Lophiosilurus alexandri Steindachner (Pisces, Teleostei, Siluriformes)

et al. 2007

View full text Add to dashboard Cite

show abstract

“…Only some of the earlier and the more minutely detailed will be mentioned here: in the flounder, Liopsetta obscura [91,92], goldfish, Carassius auratus [93], several tilapia species [94], Fundulus heteroclitus [95], zebrafish Brachydanio rerio [96], and also reviews by Wallace and Selman [97] and Guraya [98]. Moreover, a recent review skimmed through the present state of knowledge about the mechanisms of oogenesis [99]. Therefore, only some original modalities compared to mammals will be developped below, concerning mainly vitellogenesis, oocyte meiotic maturation and ovulation.…”

Section: Ovary Ovarian Follicle and Oocytementioning

confidence: 99%

“…Like in mammals, the acquisition of follicular and oocyte competence is a crucial problem, because fish farming constraints often require artificially controlling the end of the reproductive cycle, and imposing quality norms concerning the results. Several factors have been involved in the control of competence acquisition, particularly the state of homologous and heterologous gap-junctions, connexins, IGF and activins [99]. In rainbow trout ovaries, the analysis of expression profiles of various genes during the preovulatory period allows to associate the evolution of some of them with competence acquisition [144][145][146].…”

Section: Oocyte Maturation and Ovulationmentioning

confidence: 99%

Particularities of reproduction and oogenesis in teleost fish compared to mammals

2005

View full text Add to dashboard Cite

-Compared to mammals, teleost reproduction presents many original features. Reproductive strategies of species are diversified into numerous adaptations to a large variety of aquatic environments. This diversity may concern sexuality, spawning and parental behaviour, sensitivity to environmental factors, and specific features of gametogenesis such as the duration of vitellogenesis, and egg morphology. Sexuality presents a variety of natural modalities, from gonochorism to hermaphrodism. The absence of definitive arrest of body growth in the adult of most species gives a particular interest to the practical control of growth-reproduction interactions. Vitellogenesis, which represents an important metabolic effort for the maternal organism, involves the synthesis of vitellogenin, a specific glycolipo-phosphoprotein produced in the liver under estradiol stimulation, and its incorporation into oocytes by a receptor mediated process. Both estradiol synthesis in follicle cells and vtg uptake by vitellogenic follicles appear to be mainly controlled by FSH. Oocyte maturation is directly triggered by a progestin, or MIS (maturation inducing steroid) synthesised in follicle cells mainly under LH control, and acting through the non-genomic activation of a membrane receptor. Practical applications of some of these particularities result mainly from the external character of the fertilisation process and of embryonic development, which allows manipulating respectively egg chromosome stocks and sex differentiation. Moreover, the sensitivity of sex differentiation to exogenous factors favours the development of practical methods to control the sex of farmed populations. Finally, the sensitivity of reproductive mechanisms to xenobiotics has led to various kinds of bioassays for putative pollutants.reproductive strategies / sexuality / spawning / vitellogenesis / oocyte maturation / fertilisation

show abstract

“…For the need of early embryogenesis, the oocyte accumulates a large number of different mRNAs and proteins during oogenesis (Patiño and Sullivan, 2002). In this study, the YA2 reported previously by our laboratory (Xie et al, 2001) has been identified as a novel member of SNRPC because three systematic evidences have been obtained by the present and previous studies.…”

Section: Discussionmentioning

confidence: 55%

Identification of a putative oocyte-specific small nuclear ribonucleoprotein polypeptide C in gibel carp

Wang

Zhou

Gui

2007

Comparative Biochemistry and Physiology Part B: Biochemistry an

View full text Add to dashboard Cite

Ovarian follicle maturation and ovulation: an integrated perspective

Cited by 189 publications

References 20 publications

Reproductive apparatus and gametogenesis of Lophiosilurus alexandri Steindachner (Pisces, Teleostei, Siluriformes)

Reproductive apparatus and gametogenesis of Lophiosilurus alexandri Steindachner (Pisces, Teleostei, Siluriformes)

Particularities of reproduction and oogenesis in teleost fish compared to mammals

Identification of a putative oocyte-specific small nuclear ribonucleoprotein polypeptide C in gibel carp

Contact Info

Product

Resources

About