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Senarat S, Chumee S, Kaneko G, Wandee S, Kenthao A, Kongtueng P, Uribe MC, Nganvongpanit K, Iida A, Sornying P. Histological characteristics of oocyte differentiation in the captive longnose seahorse Hippocampus trimaculatus (Leach, 1814). JOURNAL OF FISH BIOLOGY 2024. [PMID: 38894610 DOI: 10.1111/jfb.15768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 06/21/2024]
Abstract
This study aimed to explore the reproductive histology and oocyte differentiation of the longnose seahorse Hippocampus trimaculatus (Leach, 1814) in captivity. Five mature healthy females were histologically observed. The reproductive systems of the five specimens exhibited similar morphological characteristics with a pair of saccular creamy white ovaries merging caudally into a single gonoduct. There were two germinal ridges lined with a layer of germinal epithelium (GE). The ovarian maturation of this species was considered asynchronous. The oogenic cells were classified into oogonia and oocytes at several developmental phases based on their size and characteristics. Oogonia were identified among the connective tissue in the middle area of the GE. The stromal compartment contained oocytes that were classified into four distinct phases: the primary growth (PG) phase having two steps (perinucleolar and oil droplets-cortical alveolar steps) and the secondary growth (SG) phase with three oocyte types, including early SG oocytes, late SG oocytes, and fully grown oocytes. The atretic oocytes (AO) were observed in all stages of oogenesis. Postovulatory follicles were also seen among the ovarian connective tissue. The occurrence of postovulatory follicles suggested that the specimens analysed in this study were in the spawning period. This research provides new insights into the identification of the reproductive cycles and morphological characteristics of the ovary of H. trimaculatus.
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Affiliation(s)
- Sinlapachai Senarat
- Division of Biological Science, Faculty of Science, Prince of Songkhla University, Songkhla, Thailand
- Department of Marine Science and Environment, Faculty of Science and Fisheries Technology, Rajamangala University of Technology Srivijaya, Trang, Thailand
| | - Supawadee Chumee
- Department of Marine Science and Environment, Faculty of Science and Fisheries Technology, Rajamangala University of Technology Srivijaya, Trang, Thailand
| | - Gen Kaneko
- College of Natural and Applied Science, University of Houston-Victoria, Victoria, Texas, USA
| | - Satiya Wandee
- Ranong Coastal Aquaculture Research and Development Center, Ranong, Thailand
| | - Anan Kenthao
- Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Piyamat Kongtueng
- Research Center for Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Mari Carmen Uribe
- Laboratorio de Biologıa de la Reproduccion Animal, Departamento de Biologıa Comparada, Facultad de Ciencias, Universidad Nacional Autonoma de Mexico, Ciudad de México, Mexico
| | - Korakot Nganvongpanit
- Research Center for Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Atsuo Iida
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Peerapon Sornying
- Faculty of Veterinary Science, Prince of Songkla University, Songkhla, Thailand
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2
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Charitonidou K, Panteris E, Ganias K. Oogonial proliferation and early oocyte dynamics during the reproductive cycle of two Clupeiform fish species. JOURNAL OF FISH BIOLOGY 2023; 102:44-52. [PMID: 36196905 DOI: 10.1111/jfb.15236] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Although oogonial proliferation continues in mature females in most teleosts, its dynamics and the transformation of oogonia to early meiotic oocytes during the reproductive cycle have received little attention. In the present study, early oogenesis was examined throughout the reproductive cycle in two Clupeiform fishes, the Mediterranean sardine, Sardina pilchardus, and the European anchovy, Engraulis encrasicolus. Observations using confocal laser scanning microscopy (CLSM) provided extensive information on markers of oogonial proliferation (mitotic divisions, oogonia nests) and meiotic prophase I divisions of oocyte nests (leptotene, zygotene, pachytene, diplotene) in ovaries of different reproductive phases. In sardine, oogonial proliferation persisted throughout the entire reproductive cycle, whereas in anchovy, it was more pronounced prior to (developing ovaries) and after (resting ovaries) the spawning period. Anchovy exhibited a higher rate of meiotic activity in developing ovaries, whereas sardine exhibited a higher rate in resting ovaries. The observed differences between the two species can potentially be attributed to different seasonal patterns of energy allocation to reproduction and the synchronization between feeding and the spawning season.
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Affiliation(s)
- Katerina Charitonidou
- Laboratory of Ichthyology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Emmanuel Panteris
- Department of Botany, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kostas Ganias
- Laboratory of Ichthyology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
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3
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Charitonidou K, Panteris E, Ganias K. ‘Ultrastructural changes in mitochondria during oogenesis in two phylogenetically close fish species’. J Morphol 2022; 283:502-509. [DOI: 10.1002/jmor.21456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/12/2022] [Accepted: 01/23/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Katerina Charitonidou
- Laboratory of Ichthyology School of Biology, Aristotle University of Thessaloniki Thessaloniki Greece
| | - Emmanuel Panteris
- Department of Botany School of Biology, Aristotle University of Thessaloniki Thessaloniki Greece
| | - Kostas Ganias
- Laboratory of Ichthyology School of Biology, Aristotle University of Thessaloniki Thessaloniki Greece
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Cole KS, Parenti LR. Gonad morphology of Rhyacichthys aspro (Valenciennes, 1837), and the diagnostic reproductive morphology of gobioid fishes. J Morphol 2021; 283:255-272. [PMID: 34951741 PMCID: PMC9303171 DOI: 10.1002/jmor.21440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 11/07/2022]
Abstract
Rhyacichthys aspro is a “basal” taxon in the Suborder Gobioidei of the teleost order Gobiiformes. We provide detailed descriptions of the reproductive morphology of adult males and females to assess the diagnostic reproductive morphological characters of this speciose clade of bony fishes. Female R. aspro are asynchronous spawners: they are able to spawn more than once in a breeding season. Oocytes are inferred to have short attachment filaments. A conspicuous feature of the external anatomy of the reproductive system (RSy) of female R. aspro is an ornate fimbriate pad upon which the urogenital papilla rests. The male reproductive system is characterized by an intralobar collection system in both the testicular and secretory lobes, termed the “sperm‐collecting canal” and “milt‐collecting canal,” respectively. These may provide additional storage for sperm and milt. The spermatogenic lobe, or testis, is that portion of the male gobioid RSy comprising seminiferous lobules and separate from other RSy components. The secretory lobe is that portion of the male gobioid reproductive system that consists of secretory lobules and is separated from other components of the male RSy. The secretory lobe has also been called, in English, the sperm‐duct gland, accessory gonadal structure, or seminal vesicle, and is endorsed as a synapomorphy of gobioid fishes.
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Affiliation(s)
- Kathleen S Cole
- School of Life Sciences, University of Hawaii at Mānoa, 2538 McCarthy Mall, Edmondson Hall 216, Honolulu, HI, USA
| | - Lynne R Parenti
- Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, PO Box 37012, MRC 159, Washington, DC, USA
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5
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Uribe MC, Cerda-Jardón PI, Blackburn DG. Morphological basis for maternal nutrient provision to embryos in the viviparous fish Ataeniobius toweri (Teleostei: Goodeidae). J Morphol 2021; 282:1575-1586. [PMID: 34355417 DOI: 10.1002/jmor.21407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 07/31/2021] [Accepted: 08/03/2021] [Indexed: 11/10/2022]
Abstract
In viviparous Mexican fishes of the family Goodeidae, embryos develop in the maternal ovarian lumen. They typically absorb maternal nutrients during gestation by means of "trophotaeniae," that is, specialized, elongated extensions of the hindgut that are exposed to the fluids, which occupy the ovarian lumen. The sole exception is Ataeniobius toweri, whose embryos lack trophotaeniae but are nevertheless matrotrophic. Thus, how its embryos obtain maternal nutrients is unclear. We studied a series of non-pregnant and pregnant ovaries of A. toweri using histology to identify the mechanism of maternal-embryo nutrient transfer. By early-gestation, embryos have depleted their yolk supplies. Yolks are released into the ovarian lumen and are ingested by the developing embryos, as shown by yolk material in their digestive tracts. The embryonic gut is lined by an epithelium consisting of columnar cells with apical microvilli, providing a means for nutrient absorption. Contrary to statements in the literature, embryos develop minuscule trophotaenial rudiments that extend slightly into the ovarian lumen. These structures are formed of an absorptive epithelium that overlies a vascular stroma, similar to the trophotaeniae of other goodeids. Through late gestation, vitellogenic follicles form and oocytes are discharged into the ovarian lumen, contributing to embryonic nutrition. Thus, histological evidence suggests that embryos chiefly obtain nutrients from ingestion of yolk and maternal secretions released into the ovarian lumen. This function possibly is supplemented by uptake via the small hindgut protrusions and other absorptive surfaces (e.g., the skin and the gill epithelium). Our observations are consistent with two evolutionary interpretations of the hindgut protrusions: (a) that they are rudimentary, evolutionary precursors of trophotaeniae formed by exteriorized hindgut; and (b) that they are vestigial remnants of trophotaeniae that were lost during a switch to a form of matrotrophy involving nutrient ingestion.
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Affiliation(s)
- Mari Carmen Uribe
- Laboratorio de Biología de la Reproducción, Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Paola-Ivonne Cerda-Jardón
- Laboratorio de Biología de la Reproducción, Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Daniel G Blackburn
- Department of Biology and Electron Microscopy Center, Trinity College, Hartford, Connecticut, USA
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Dymek AM, Pecio A, Piprek RP. Diversity of Balbiani body formation in internally and externally fertilizing representatives of Osteoglossiformes (Teleostei: Osteoglossomorpha). J Morphol 2021; 282:1313-1329. [PMID: 34145919 DOI: 10.1002/jmor.21387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/08/2021] [Accepted: 06/15/2021] [Indexed: 01/30/2023]
Abstract
During the early stages of oogenesis, the Balbiani body is formed in the primary oocytes. It consists of the Golgi apparatus, endoplasmic reticulum (ER), and numerous mitochondria aggregated with germ plasm, but its form may differ among animals. Hypothetically, during oogenesis oocytes become adapted to future development in two different environments depending on internal or external fertilization. We aimed to investigate, using light and transmission electron microscopy, the development of the Balbiani body during oogenesis in representatives of Osteoglossiformes, one of the most basal Teleostei groups. We analyzed the structure of oogonia and primary oocytes in the internally fertilizing butterflyfish Pantodon buchholzi and the externally fertilizing Osteoglossum bicirrhosum and Arapaima gigas to compare formation of the Balbiani body in relation to modes of fertilization. We demonstrated that the presence of the germ plasm as well as the fusion and fission of mitochondria are the conserved features of the Bb. However, each species exhibited also some peculiar features, including the presence of three types of ooplasm with different electron density and mitochondria-associated membranes in P. buchholzi; annulate lamellae, complexes of the Golgi apparatus, ER network, and lysosome-like bodies in O. bicirrhosum; as well as karmellae and whorls formed by the lamellae of the ER in A. gigas. Moreover, the form of the germ plasm observed in close contact with mitochondria differed between osteoglossiforms, with a "net-like" structure in P. buchholzi, the presence of numerous strings in O. bicirrhosum, and irregular accumulations in A. gigas. These unique features indicate that the extreme diversity of gamete structure observed so far only in the spermatozoa of osteoglossiforms is also characteristic for oocyte development in these basal teleosts. Possible reason of this variability is a period of about 150 million years of independent evolution of the lineages.
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Affiliation(s)
- Anna M Dymek
- Department of Comparative Anatomy, Institute of Zoology and Biomedical Research, Jagiellonian University, Cracow, Poland
| | - Anna Pecio
- Department of Comparative Anatomy, Institute of Zoology and Biomedical Research, Jagiellonian University, Cracow, Poland
| | - Rafal P Piprek
- Department of Comparative Anatomy, Institute of Zoology and Biomedical Research, Jagiellonian University, Cracow, Poland
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7
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Gan RH, Wang Y, Li Z, Yu ZX, Li XY, Tong JF, Wang ZW, Zhang XJ, Zhou L, Gui JF. Functional Divergence of Multiple Duplicated Foxl2 Homeologs and Alleles in a Recurrent Polyploid Fish. Mol Biol Evol 2021; 38:1995-2013. [PMID: 33432361 PMCID: PMC8097289 DOI: 10.1093/molbev/msab002] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Evolutionary fates of duplicated genes have been widely investigated in many polyploid plants and animals, but research is scarce in recurrent polyploids. In this study, we focused on foxl2, a central player in ovary, and elaborated the functional divergence in gibel carp (Carassius gibelio), a recurrent auto-allo-hexaploid fish. First, we identified three divergent foxl2 homeologs (Cgfoxl2a-B, Cgfoxl2b-A, and Cgfoxl2b-B), each of them possessing three highly conserved alleles and revealed their biased retention/loss. Then, their abundant sexual dimorphism and biased expression were uncovered in hypothalamic-pituitary-gonadal axis. Significantly, granulosa cells and three subpopulations of thecal cells were distinguished by cellular localization of CgFoxl2a and CgFoxl2b, and the functional roles and the involved process were traced in folliculogenesis. Finally, we successfully edited multiple foxl2 homeologs and/or alleles by using CRISPR/Cas9. Cgfoxl2a-B deficiency led to ovary development arrest or complete sex reversal, whereas complete disruption of Cgfoxl2b-A and Cgfoxl2b-B resulted in the depletion of germ cells. Taken together, the detailed cellular localization and functional differences indicate that Cgfoxl2a and Cgfoxl2b have subfunctionalized and cooperated to regulate folliculogenesis and gonad differentiation, and Cgfoxl2b has evolved a new function in oogenesis. Therefore, the current study provides a typical case of homeolog/allele diversification, retention/loss, biased expression, and sub-/neofunctionalization in the evolution of duplicated genes driven by polyploidy and subsequent diploidization from the recurrent polyploid fish.
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Affiliation(s)
- Rui-Hai Gan
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yang Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhi Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhao-Xi Yu
- Ningxia Fisheries Research Institute, Yinchuan, China
| | - Xi-Yin Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jin-Feng Tong
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhong-Wei Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiao-Juan Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Li Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jian-Fang Gui
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, The Innovation Academy of Seed Design, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
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Dymek AM, Piprek RP, Boroń A, Kirschbaum F, Pecio A. Ovary structure and oogenesis in internally and externally fertilizing Osteoglossiformes (Teleostei:Osteoglossomorpha). ACTA ZOOL-STOCKHOLM 2021. [DOI: 10.1111/azo.12378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anna M. Dymek
- Department of Comparative Anatomy Institute of Zoology and Biomedical Research Faculty of Biology Jagiellonian University Cracow Poland
| | - Rafal P. Piprek
- Department of Comparative Anatomy Institute of Zoology and Biomedical Research Faculty of Biology Jagiellonian University Cracow Poland
| | - Alicja Boroń
- Department of Zoology Faculty of Biology and Biotechnology University of Warmia and Mazury in Olsztyn Olsztyn Poland
| | - Frank Kirschbaum
- Albrecht Daniel Thaer Institute of Agricultural and Horticultural Sciences Faculty of Life Sciences Humboldt University of Berlin Berlin Germany
| | - Anna Pecio
- Department of Comparative Anatomy Institute of Zoology and Biomedical Research Faculty of Biology Jagiellonian University Cracow Poland
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Impact of captive conditions on female germinal epithelium of the butterflyfish Chaetodon striatus (Perciformes: Chaetodontidae). ZYGOTE 2021; 29:204-215. [PMID: 33446293 DOI: 10.1017/s0967199420000763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Chaetodon striatus is a cosmopolitan seawater species present in aquaria all over the world and its extractivism is quite high. The lack of studies on the reproductive biology of C. striatus contributes to the difficulty in managing the species outside its natural habitat. Without knowledge of the mechanisms that control or affect gonadal changes, reproduction of C. striatus in captivity has become almost impossible, considering that the species is quite sensitive and the effect of captive conditions on its reproductive biology is unknown. Therefore, this study aimed to evaluate the effect on its reproductive biology of the animal's confinement and possible alteration in structure of the ovaries. In C. striatus, after oocyte development, for animals confined in small spaces, maturing oocytes undergo atresia. During atresia, ovarian follicles were at different stages of degeneration, characterized by the progressive loss of the basement membrane and disorganization of the follicle complex. In the advanced stage of follicular atresia, there was total loss of the basement membrane, culminating in degradation of the follicle complex. In unconfined animals, oocyte development and maturation were not affected. Confinement also affected the cell structure of the germinal epithelium, which showed large numbers of apoptotic bodies. The difference in cortisol and glucose levels between the unconfined and confined groups was significant, which may have to do with the change found in the ovaries, such as extensive follicular atresia and loss of the basement membrane.
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Cellular development of the germinal epithelium during the female and male gametogenesis of Chaetodon striatus (Perciformes: Chaetodontidae). ZYGOTE 2020; 28:291-299. [DOI: 10.1017/s0967199420000118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SummaryButterflyfish Chaetodon striatus is highly sought after in the marine ornamental aquarium, although studies about its reproductive biology are scarce. Therefore, to contribute to a better understanding of the reproductive aspects of C. striatus, we describe in detail with the use of high resolution histology the cellular dynamics of the germinal epithelium during the reproductive life history of this species. Based on the activity of the germinal epithelium, this study describes different stages of the gonadal development, similar to the reproductive phases found in other fish, to determine the reproductive period of C. striatus. In characterization of gonadal development, the following germ cells are described for males: spermatogonia, spermatocytes, spermatids and spermatozoa. Oogonia, early, primary, secondary, full-grown and maturing oocytes are described for females. Female germinal epithelium of C. striatus showed substantial changes over the study period, indicating that there was an active spawning period. Male germinal epithelium also presented relevant alterations, indicating reproductive activity in the testicular lobules. Morphological data confirm how informative was the cellular dynamics of the germinal epithelium for understanding gonadal development during adult reproductive life of fish in general. Although Chaetodon are a popular species, previous studies have only produced superficial and rough histological analyses. Therefore, this study demonstrates important information on germinal epithelium of Chaetodon. This knowledge could be a fundamental tool for development of new strategies for breeding of several species in captivity, especially butterflyfishes.
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Mouchlianitis FA, Belo AF, Vieira AR, Quintella BR, Almeida PR, Ganias K. Primary and secondary oocyte growth dynamics in anadromous semelparous Allis shad Alosa alosa. JOURNAL OF FISH BIOLOGY 2019; 95:1447-1456. [PMID: 31613988 DOI: 10.1111/jfb.14161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
We analysed the ovarian dynamics of the anadromous semelparous allis shad Alosa alosa for which our working hypothesis was that mature pre-spawning females would have very low or even exhausted primary growth (PG) oocyte reserves; semelparity has been linked with the depletion of the pool of PG oocytes. To test this hypothesis, the PG oocytes were enumerated, their recruitment pattern to the secondary growth (SG) phase was analysed and their potential replenishment from the pool of oogonia was examined in females caught very close to the Mondego River mouth, in central Portugal and along the river. The development of the SG oocytes was also analysed, the fecundity (batch, total and annual) values were estimated and the intensity of atresia was quantified. Ovarian samples and histological sections were investigated in parallel. A dynamic recruitment pattern of PG oocytes to the SG phase was revealed, where all PG oocytes were recruited and were not replenished by oogonia. Annual fecundity was subject to down-regulation due to atresia prior to spawning and its size was multiple times higher than the size of batch fecundity. Lack of population synchronicity in ovarian development and spawning migration was also observed. This multifaceted analysis of the ovarian dynamics of this species will contribute to management efforts for this critically endangered and economically important fish throughout its geographical distribution. The results reported in this study will also assist in unravelling the complexity of the early processes of oogenesis in fish.
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Affiliation(s)
- Foivos A Mouchlianitis
- Laboratory of Ichthyology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ana F Belo
- MARE - Centro de Ciências do Mar e do Ambiente, Universidade de Évora, Évora, Portugal
| | - Ana R Vieira
- MARE - Centro de Ciências do Mar e do Ambiente, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Bernardo R Quintella
- MARE - Centro de Ciências do Mar e do Ambiente, Universidade de Évora, Évora, Portugal
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Pedro R Almeida
- MARE - Centro de Ciências do Mar e do Ambiente, Universidade de Évora, Évora, Portugal
- Departamento de Biologia, Escola de Ciências e Tecnologia, Universidade de Évora, Évora, Portugal
| | - Kostas Ganias
- Laboratory of Ichthyology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
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12
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Dos Santos JE, Marcon L, Guedes Brito MF, Sales NG, Rizzo E, Bazzoli N. Reproductive biology of the Neotropical catfish Iheringichthys labrosus (Siluriformes: Pimelodidae), with anatomical and morphometric analysis of gonadal tissues. Anim Reprod Sci 2019; 209:106173. [PMID: 31514919 DOI: 10.1016/j.anireprosci.2019.106173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 08/07/2019] [Accepted: 08/22/2019] [Indexed: 11/26/2022]
Abstract
The reproduction of Iheringichthys labrosus (Lütken, 1874) from the Turvo River, Brazil, was studied using anatomical, biometric, histological, and ultrastructural techniques. Between April 2014 and March 2015, a total of 278 males and 512 females were captured bimonthly. The testes of Iheringichthys labrosus are fringed and possess a cranial spermatogenic region and an exclusively secretory caudal region. Histologically, the cranial region is composed of seminiferous tubules with spermatogenesis being completed in cysts. The spermatozoa are of the primitive type with a spherical head and have a rudimentary intermediate piece and a long tail with an axonemic arrangement of 9 + 2. The caudal region does not form an individualized gland, and cells in this testis area have characteristics of protein secretion. A variable density electron-dense secretion accumulates in the cisternae of the rough endoplasmic reticulum in the lumen of the seminiferous tubules and in the testicular ducts during maturation. The cortical alveoli are discontinuous, and the zona pellucida consists of three layers crossed by pore canals, and the follicular cells are squamous in the early stages of oogenesis and cuboidal in advanced stages. The gonadosomatic index was associated with the maturation of the gonads while the condition factor indicated that the fish feed less and utilize adipose reserves during the reproductive period. Males and females reproductively functional throughout the year with spawning being partial or multiple, similar to that reported in studies of the species in lentic environments.
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Affiliation(s)
- José Enemir Dos Santos
- Programa de Pós-graduação em Biologia de Vertebrados da PUC Minas, Belo Horizonte, MG, Brazil; Tutor PET Biologia da PUC Minas, Belo Horizonte, MG, Brazil.
| | - Lucas Marcon
- Programa de Pós-graduação em Biologia de Vertebrados da PUC Minas, Belo Horizonte, MG, Brazil; Departamento de Biologia, Universidade do Estado de Minas Gerais, Ibirité, MG, Brazil
| | | | - Naiara Guimarães Sales
- Ecosystems & Environment Research Centre, School of Environment & Life Sciences, University of Salford, UK
| | - Elizete Rizzo
- Programa de Pós-graduação em Biologia Celular da UFMG, Belo Horizonte, MG, Brazil
| | - Nilo Bazzoli
- Programa de Pós-graduação em Biologia de Vertebrados da PUC Minas, Belo Horizonte, MG, Brazil; Programa de Pós-graduação em Biologia Celular da UFMG, Belo Horizonte, MG, Brazil
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13
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Domínguez‐Castanedo O, Uribe MC, Muñoz‐Campos TM. Morphological patterns of cell death in ovarian follicles of primary and secondary growth and postovulatory follicle complex of the annual killifish
Millerichthys robustus
(Cyprinodontiformes: Cynolebiidae). J Morphol 2019; 280:1668-1681. [DOI: 10.1002/jmor.21056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 07/12/2019] [Accepted: 08/07/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Omar Domínguez‐Castanedo
- Departamento El Hombre y su AmbienteUniversidad Autónoma Metropolitana, Unidad Xochimilco Calzada del Hueso No. 1100, Coyoacán, CDMX Mexico
| | - Mari Carmen Uribe
- Laboratorio de Biología de la Reproducción. Departamento de Biología Comparada. Facultad de Ciencias, Circuito ExteriorCiudad Universitaria, Universidad Nacional Autónoma de México Insurgentes Sur 3000, Coyoacán, CDMX Mexico
| | - Tessy M. Muñoz‐Campos
- Licenciatura en BiologíaUniversidad Autónoma Metropolitana, Unidad Xochimilco Calzada del Hueso No. 1100, Coyoacán, CDMX Mexico
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Uribe MC, Parenti LR. Harry John Grier (1940–2018). COPEIA 2019. [DOI: 10.1643/ot-19-210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Mari Carmen Uribe
- Facultad de Ciencias, Laboratorio de Biología de la Reproducción Animal, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., México;
| | - Lynne R. Parenti
- Division of Fishes, NHB MRC 159, PO Box 37012, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20013-7012;
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Żelazowska M, Halajian A. Previtellogenic oocytes of South African largemouth bass Micropterus salmoides
Lacépède 1802 (Actinopterygii, Perciformes) - the Balbiani body, cortical alveoli and developing eggshell. J Morphol 2019; 280:360-369. [DOI: 10.1002/jmor.20948] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 12/14/2018] [Accepted: 12/23/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Monika Żelazowska
- Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology and Biomedical Research; Jagiellonian University; Kraków Poland
| | - Ali Halajian
- Department of Biodiversity; University of Limpopo; Sovenga South Africa
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Domínguez-Castanedo O, Uribe MC. Ovarian structure, folliculogenesis and oogenesis of the annual killifish Millerichthys robustus
(Cyprinodontiformes: Cynolebiidae). J Morphol 2019; 280:316-328. [DOI: 10.1002/jmor.20945] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 12/10/2018] [Accepted: 12/20/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Omar Domínguez-Castanedo
- Departamento El Hombre y su Ambiente; Universidad Autónoma Metropolitana Unidad Xochimilco; Calzada del Hueso No. 1100, Delegación Coyoacán, CDMX Mexico City
| | - Mari Carmen Uribe
- Departamento de Biología Comparada, Facultad de Ciencias, Circuito Exterior, Laboratorio de Biología de la Reproducción; Ciudad Universitaria, Universidad Nacional Autónoma de México; Insurgentes Sur 3000, Delegación Coyoacán, CDMX Mexico City
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17
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Johnson AK, Grier HJ. Ovarian germinal epithelium, oocyte development and the secretory epithelium in monkfish (Lophius americanus Valenciennes). J Morphol 2018; 279:1887-1896. [PMID: 30444037 DOI: 10.1002/jmor.20910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 09/01/2018] [Accepted: 09/29/2018] [Indexed: 11/09/2022]
Abstract
Histological examination of ovarian morphology was conducted on the monkfish, Lophius americanus. The ovary is of the cystovarian type, that is, with a lumen. However, ovarian morphology is quite unique, compared to other fishes, in that ovarian lamellae only originate along the ventral ovarian wall rather than around the periphery. They may branch at their base, but are otherwise unbranching. Furthermore, the germinal epithelium that is, the site of germ cell production, is described for the first time in L. americanus. The germinal epithelium is uniquely restricted around the base of each lamellae rather than being distributed along lamellar epithelia. Folliculogenesis, the process whereby ovarian follicles are formed, is completed in the Perinucleolar Step of the Primary Growth Stage. As oocytes grow and mature, they are increasingly observed towards the apex of the unbranched lamellae where ovulation occurs. The appearance of small vesicles within yolk at the vegetal pole was observed in oocytes during maturation. Prior to ovulation, cells of the ovarian epithelium produce a mucogelatinous matrix that forms the veil in which eggs, after fertilization, become suspended in the water column until hatching.
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Affiliation(s)
- Andrea K Johnson
- Department of Natural Sciences, University of Maryland Eastern Shore, Princess Anne, Maryland
| | - Harry J Grier
- Florida Fish and Wildlife Conservation Commission, Florida Fish and Wildlife Research Institute, St. Petersburg, Florida
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Viana IKS, Gonçalves LAB, Ferreira MAP, Mendes YA, Rocha RM. Oocyte growth, follicular complex formation and extracellular-matrix remodeling in ovarian maturation of the imperial zebra pleco fish Hypancistrus zebra. Sci Rep 2018; 8:13760. [PMID: 30213994 PMCID: PMC6137070 DOI: 10.1038/s41598-018-32117-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 08/16/2018] [Indexed: 01/29/2023] Open
Abstract
This contribution describes the growth of oocytes, addressing the formation of structures that compose the follicular complex, as well as the remodeling of the extracellular matrix, specifically laminin, fibronectin and type IV collagen during gonadal maturation. Thirty-seven females of the Acari zebra fish, Hypancistrus zebra were captured and the ovaries were submitted to histological processing for light and electron microscopy and immunohistochemistry techniques. Oogonia and four stages (I – IV) of oocytes were distinguished, and structures such as the postovulatory follicle and atretic oocytes (initial and advanced atresia) were observed. The follicular complex consists of the mature oocyte, zona radiata (Zr1, Zr2 and Zr3), follicular cells, basement membrane and theca. During oocyte growth, proteins of the extracellular matrix showed different intensities of staining. Based on these observations, a model of oocyte growth is proposed to define specific characteristics of the oocyte and the remodeling of the extracellular matrix in the ovary of H. zebra. This model of oocyte growth can be extended to other species of ornamental fishes. This study contributes data for induced fertilization and eventual conservation of this species.
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Affiliation(s)
- Ivana Kerly S Viana
- Institute of Biological Sciences, Universidade Federal do Pará, Belém, Pará, Brazil.
| | | | | | - Yanne A Mendes
- Institute of Biological Sciences, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Rossineide M Rocha
- Institute of Biological Sciences, Universidade Federal do Pará, Belém, Pará, Brazil
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Grier HJ, Porak WF, Carroll J, Parenti LR. Oocyte Development and Staging in the Florida Bass,Micropterus floridanus(LeSueur, 1822), with Comments on the Evolution of Pelagic and Demersal Eggs in Bony Fishes. COPEIA 2018. [DOI: 10.1643/cg-17-679] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
SummaryThis study aimed to understand how germ cell development occurs in females of Devario aequipinnatus, by morphologically describing oogenesis and the reproductive phases. Sexually mature females of D. aequipinnatus (n = 70) were obtained from commercial fisheries and delivered to the Laboratório de Ictiologia Neotropical, UNESP, Ilha Solteira, SP, Brazil. The ovaries were removed, fragmented and fixed following the usual techniques for light microscopy. The stages of ovarian development in D. aequipinnatus begin with the oogonia, which proliferate into new cells or differentiate into prophasic oocytes that, at the end of this process, form the ovarian follicle and end folliculogenesis. In the previtellogenic stage, the oocytes were characterized mainly by the gradual loss of basophilia and an increase in oocyte diameter. Vitellogenesis was marked mainly by the incorporation of yolk granules. Mature oocytes were defined by their migration from the nucleus to the micropyle. Postovulatory follicles and atresic oocytes were also observed. The reproductive phases were classified as: immature, early and final developing, spawning capable, regressing and regenerating. Therefore, the development of an understanding of cell modifications that occurs up to oogenesis is a basic step that is essential for the description of the reproductive biology of D. aequipinnatus, given the lack of information about the reproductive aspects of this species.
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Yang Y, Liu Q, Xiao Y, Wang X, An H, Song Z, You F, Wang Y, Ma D, Li J. Germ Cell Migration, Proliferation and Differentiation during Gonadal Morphogenesis in All-Female Japanese Flounder (Paralichthys Olivaceus
). Anat Rec (Hoboken) 2018; 301:727-741. [DOI: 10.1002/ar.23698] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 04/23/2017] [Accepted: 05/03/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Yang Yang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Laboratory for Marine Biology and Biotechnology; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266071 China
| | - Qinghua Liu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yongshuang Xiao
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Xueying Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- Laboratory for Marine Biology and Biotechnology; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266071 China
| | - Hao An
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Laboratory for Marine Biology and Biotechnology; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266071 China
| | - Zongcheng Song
- Weihai Shenghang Aquatic Product Science and Technology Co. Ltd; Weihai 264200 China
| | - Feng You
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Laboratory for Marine Biology and Biotechnology; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266071 China
| | - Yanfeng Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- Laboratory for Marine Biology and Biotechnology; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266071 China
| | - Daoyuan Ma
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- Laboratory for Marine Biology and Biotechnology; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266071 China
| | - Jun Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology; Chinese Academy of Sciences; Qingdao 266071 China
- Laboratory for Marine Biology and Biotechnology; Qingdao National Laboratory for Marine Science and Technology; Qingdao 266071 China
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Torres-Martínez A, Hernández-Franyutti A, Uribe MC, Contreras-Sánchez WM. Ovarian structure and oogenesis of the extremophile viviparous teleostPoecilia mexicana(Poeciliidae) from an active sulfur spring cave in Southern Mexico. J Morphol 2017; 278:1667-1681. [DOI: 10.1002/jmor.20740] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 07/13/2017] [Accepted: 07/26/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Aarón Torres-Martínez
- Laboratorio de Acuicultura Tropical, División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tab; México
| | - Arlette Hernández-Franyutti
- Laboratorio de Acuicultura Tropical, División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tab; México
| | - Mari Carmen Uribe
- Laboratorio de Biología de la Reproducción Animal, Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad de México; México
| | - Wilfrido Miguel Contreras-Sánchez
- Laboratorio de Acuicultura Tropical, División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tab; México
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Żelazowska M, Fopp-Bayat D. Ovarian nests in cultured females of the Siberian sturgeon Acipenser baerii (Chondrostei, Acipenseriformes). J Morphol 2017; 278:1438-1449. [PMID: 28681453 DOI: 10.1002/jmor.20723] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 05/12/2017] [Accepted: 06/19/2017] [Indexed: 01/20/2023]
Abstract
Ovaries of Acipenser baerii are of an alimentary type and probably are meroistic. They contain ovarian nests, individual follicles, inner germinal ovarian epithelium, and fat tissue. Nests comprise cystoblasts, germline cysts, numerous early previtellogenic oocytes, and somatic cells. Cysts are composed of cystocytes, which are connected by intercellular bridges and are in the pachytene stage of the first meiotic prophase. They contain bivalents, finely granular, medium electron dense material, and nucleoli in the nucleoplasm. Many cystocytes degenerate. Oocytes differ in size and structure. Most oocytes are in the pachytene and early diplotene stages and are referred to as the PACH oocytes. Oocytes in more advanced diplotene stage are referred to as the DIP oocytes. Nuclei in the PACH oocytes contain bivalents and irregularly shaped accumulation of DNA (DNA-body), most probably corresponding to the rDNA-body. The DNA-body is composed of loose, fine granular material, and comprises multiple nucleoli. At peripheries, it is fragmented into blocks that remain in contact with the inner nuclear membrane. In the ooplasm, there is the rough endoplasmic reticulum, Golgi complexes, free ribosomes, complexes of mitochondria with cement, fine fibrillar material containing granules, and lipid droplets. The organelles and material of nuclear origin form a distinct accumulation (a granular ooplasm) in the vicinity of the nucleus. Some of the PACH oocytes are surrounded by flat somatic cells. There are lampbrush chromosomes and multiple nucleoli present (early diplotene stage) in the nucleoplasm. These PACH oocytes and neighboring somatic cells have initiated the formation of ovarian follicles. The remaining PACH oocytes transform to the DIP oocytes. The DIP oocytes contain lampbrush chromosomes and a DNA-body is absent in nuclei. Multiple nucleoli are numerous in the nucleoplasm and granular ooplasm is present at the vegetal region of the oocyte.
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Affiliation(s)
- Monika Żelazowska
- Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, Gronostajowa 9, Kraków, 30-387, Poland
| | - Dorota Fopp-Bayat
- Department of Ichthyology, Faculty of Environmental Science, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, Olsztyn, 10-917, Poland
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Grier HJ, Neidig CL, Quagio-Grassiotto I. Development and fate of the postovulatory follicle complex, postovulatory follicle, and observations on folliculogenesis and oocyte atresia in ovulated common snook,Centropomus undecimalis(Bloch, 1792). J Morphol 2017; 278:547-562. [DOI: 10.1002/jmor.20652] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 11/23/2016] [Accepted: 12/22/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Harry J. Grier
- Florida Fish and Wildlife Research Institute; 100 8 Ave, S St. Petersburg Florida 33701-5020
| | - Carole L. Neidig
- Mote Marine Laboratory; Directorate of Fisheries and Aquaculture; 1600 Ken Thompson Parkway Sarasota Florida 34236-1004
- Mote Aquaculture Research Park; 874 WR Mote Way Sarasota Florida 34240-8933
| | - Irani Quagio-Grassiotto
- Departamento de Morfologia; Instituto de Biocências, IBB-UNESP; Distrito de Rubião Jr, S/N Botucatu SP 18616-000 Brasil
- Centro de Aquicultura da Unesp, Caunesp; Jaboticabal SP Brasil
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Uribe MC, Grier HJ, García-Alarcón A, Parenti LR. Oogenesis: From Oogonia to Ovulation in the Flagfish,Jordanella floridaeGoode and Bean, 1879 (Teleostei: Cyprinodontidae). J Morphol 2016; 277:1339-54. [DOI: 10.1002/jmor.20580] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 06/23/2016] [Accepted: 06/29/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Mari Carmen Uribe
- Facultad De Ciencias, Departamento De Biología Comparada; Universidad Nacional Autónoma De México; Ciudad De México 04510 México
| | - Harry J. Grier
- Fish and Wildlife Research Institute; St. Petersburg Florida 33701
- Division of Fishes, Department of Vertebrate Zoology; National Museum of Natural History, Smithsonian Institution; Washington District of Columbia 20013-7012
| | - Adriana García-Alarcón
- Facultad De Ciencias, Departamento De Biología Comparada; Universidad Nacional Autónoma De México; Ciudad De México 04510 México
| | - Lynne R. Parenti
- Division of Fishes, Department of Vertebrate Zoology; National Museum of Natural History, Smithsonian Institution; Washington District of Columbia 20013-7012
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Grier HJ, Uribe MC, Lo Nostro FL, Mims SD, Parenti LR. Conserved form and function of the germinal epithelium through 500 million years of vertebrate evolution. J Morphol 2016; 277:1014-44. [DOI: 10.1002/jmor.20554] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 02/18/2016] [Accepted: 03/18/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Harry J. Grier
- Fish and Wildlife Research Institute; St. Petersburg Florida
- Department of Vertebrate Zoology; Division of Fishes; National Museum of Natural History, MRC 159, Smithsonian Institution; Washington DC
| | - Mari Carmen Uribe
- Laboratorio Biología de la Reproducción, Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México; Ciudad de México 04510 México
| | - Fabiana L. Lo Nostro
- Laboratorio de Ecotoxicología Acuática, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires & Instituto de Biodiversidad y Biología Experimental y Aplicada, CONICET-UBA, C1428EGA Buenos Aires; Argentina
| | - Steven D. Mims
- Aquaculture Research Center. Kentucky State University; Frankfort KY 40601
| | - Lynne R. Parenti
- Department of Vertebrate Zoology; Division of Fishes; National Museum of Natural History, MRC 159, Smithsonian Institution; Washington DC
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Golpour A, Pšenička M, Niksirat H. Subcellular localization of calcium deposits during zebrafish (Danio rerio) oogenesis. Micron 2016; 80:6-13. [DOI: 10.1016/j.micron.2015.09.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/04/2015] [Indexed: 10/23/2022]
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Parenti LR, Grier HJ, Uribe M. Reproductive Biology ofChlorophthalmus agassiziBonaparte, 1840 (Teleostei: Aulopiformes: Chlorophthalmidae) as Revealed through Histology of Archival Museum Specimens. COPEIA 2015. [DOI: 10.1643/cg-15-256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
We aimed to analyze the oogenesis of adult females of the cichlid fish Laetacara araguaiae. The specimens' gonads were removed and processed for light and transmission electron microscopy. Oogenesis in L. araguaiae showed the following characteristics: a germinal epithelium with three types of oogonia (A-undifferentiated, A-differentiated and B-oogonia), oocytes at meiotic prophase stage and ovarian follicle formation. Oocytes showing primary growth with pre-vitellogenic and cortical alveolus were observed. Similar to data for other cichlids, oocytes in secondary growth or vitellogenesis were characterized by the initial deposition of yolk microgranules. The event that characterizes the maturation stage is nucleolus migration, also called the germinal vesicle, to the oocyte periphery in the direction of the micropyle. The follicular complex undergoes several changes throughout the oocyte stages. To the best of our knowledge this study is the first to describe L. araguaiae oogenesis. Moreover, this study is the first step to better understand the reproductive biology of this species, which shows great potential for use as an ornamental fish.
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Santana JCDO, Quagio-Grassiotto I. Extracellular matrix remodeling of the testes through the male reproductive cycle in Teleostei fish. FISH PHYSIOLOGY AND BIOCHEMISTRY 2014; 40:1863-75. [PMID: 25142725 DOI: 10.1007/s10695-014-9974-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 08/10/2014] [Indexed: 05/21/2023]
Abstract
During the fish reproductive cycle, testes undergo morphological changes related to germinal epithelium and remodeling of extracellular matrix components (ECM). ECM is degraded mainly by action of matrix metalloproteinases (MMPs). Due to the natural renewal of ECM in fish testes, we choose Pimelodus maculatus to study remodeling of ECM throughout reproductive cycle, using picrosirius (to identify type I, II, III collagen) and reticulin (type III collagen), and to immunolocalize MT1-MMP (membrane type 1-matrix metalloproteinase) and MMP-2 in testis cells. Testes were classified in four reproductive phases: regenerating, development, spawning capable and regressing. Picrosirius and reticulin demonstrated a differential distribution of total collagen fibers during the reproductive cycle. Immunohistochemistry showed MT1-MMP only in acidophilic granulocyte cells mainly inside blood vessels, in connective tissue of capsule close to the germinal compartment, and also infiltrated in interstitial connective tissue. MMP-2 was detected in fibroblast and endothelial cells of interstitial and capsule blood vessels, in epithelial cells of capsule, and in acidophilic granulocyte cells at same description for MT1-MMP. The fish testes ECM were remodeled throughout reproductive cycle in according to morphophysiological alterations. During reproductive season (spawning capable), the interstitium increased in total collagen fibers (type I, II, III). After spermiation period (regression and regenerating), the amount of collagen fibers decreased in response to action of MMPs on collagen degradation and other interstitial components (not assessed in this study). MMPs seem to be indispensable components for natural cyclic events of ECM remodeling of fish testes and for guarantee tissue homeostasis throughout reproductive cycle.
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Affiliation(s)
- Julio Cesar de Oliveira Santana
- Departamento de Morfologia, Instituto de Biociências de Botucatu, UNESP, Campus de Botucatu, Botucatu, SP, 18618-970, Brazil
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Meijide FJ, Rey Vázquez G, Grier HJ, Lo Nostro FL, Guerrero GA. Development of the germinal epithelium and early folliculogenesis during ovarian morphogenesis in the cichlid fishCichlasoma dimerus(Teleostei, Perciformes). ACTA ZOOL-STOCKHOLM 2014. [DOI: 10.1111/azo.12101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fernando J. Meijide
- Lab. de Embriología Animal-Ecotoxicología Acuática; DBBE; FCEN; UBA; Buenos Aires Argentina
- IBBEA; CONICET-UBA; Int. Güiraldes 2160, Ciudad Universitaria, C1428EHA Buenos Aires Argentina
| | - Graciela Rey Vázquez
- Lab. de Embriología Animal-Ecotoxicología Acuática; DBBE; FCEN; UBA; Buenos Aires Argentina
| | - Harry J. Grier
- Florida Fish and Wildlife Research Institute; 100 8th Ave. SE St. Petersburg FL 33701 USA
| | - Fabiana L. Lo Nostro
- Lab. de Embriología Animal-Ecotoxicología Acuática; DBBE; FCEN; UBA; Buenos Aires Argentina
- IBBEA; CONICET-UBA; Int. Güiraldes 2160, Ciudad Universitaria, C1428EHA Buenos Aires Argentina
| | - Graciela A. Guerrero
- Lab. de Embriología Animal-Ecotoxicología Acuática; DBBE; FCEN; UBA; Buenos Aires Argentina
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Uribe MC, De la Rosa-Cruz G, Grier HJ. Proliferation of Oogonia and folliculogenesis in the viviparous teleostIlyodon whitei(Goodeidae). J Morphol 2014; 275:1004-15. [DOI: 10.1002/jmor.20277] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 02/12/2014] [Accepted: 03/21/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Mari Carmen Uribe
- Laboratorio de Biología de la Reproducción Animal, Departamento de Biología Comparada, Facultad de Ciencias; Universidad Nacional Autónoma de México, Ciudad Universitaria; México DF 04510 Mexico
| | - Gabino De la Rosa-Cruz
- Laboratorio de Biología de la Reproducción Animal, Departamento de Biología Comparada, Facultad de Ciencias; Universidad Nacional Autónoma de México, Ciudad Universitaria; México DF 04510 Mexico
| | - Harry J. Grier
- Florida Fish and Wildlife Research Institute; St. Petersburg Florida 33701-5020
- Division of Fishes, Department of Vertebrate Zoology, National Museum of Natural History; Smithsonian Institution; Washington DC 20013-7012
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Silva DMZDA, Pansonato-Alves JC, Utsunomia R, Araya-Jaime C, Ruiz-Ruano FJ, Daniel SN, Hashimoto DT, Oliveira C, Camacho JPM, Porto-Foresti F, Foresti F. Delimiting the origin of a B chromosome by FISH mapping, chromosome painting and DNA sequence analysis in Astyanax paranae (Teleostei, Characiformes). PLoS One 2014; 9:e94896. [PMID: 24736529 PMCID: PMC3988084 DOI: 10.1371/journal.pone.0094896] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 03/19/2014] [Indexed: 12/19/2022] Open
Abstract
Supernumerary (B) chromosomes have been shown to contain a wide variety of repetitive sequences. For this reason, fluorescent in situ hybridisation (FISH) is a useful tool for ascertaining the origin of these genomic elements, especially when combined with painting from microdissected B chromosomes. In order to investigate the origin of B chromosomes in the fish species Astyanax paranae, these two approaches were used along with PCR amplification of specific DNA sequences obtained from the B chromosomes and its comparison with those residing in the A chromosomes. Remarkably, chromosome painting with the one-arm metacentric B chromosome probe showed hybridization signals on entire B chromosome, while FISH mapping revealed the presence of H1 histone and 18S rDNA genes symmetrically placed in both arms of the B chromosome. These results support the hypothesis that the B chromosome of A. paranae is an isochromosome. Additionally, the chromosome pairs Nos. 2 or 23 are considered the possible B chromosome ancestors since both contain syntenic H1 and 18S rRNA sequences. The analysis of DNA sequence fragments of the histone and rRNA genes obtained from the microdissected B chromosomes showed high similarity with those obtained from 0B individuals, which supports the intraspecific origin of B chromosomes in A. paranae. Finally, the population hereby analysed showed a female-biased B chromosome presence suggesting that B chromosomes in this species could influence sex determinism.
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Affiliation(s)
- Duílio M. Z. de A. Silva
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
| | - José Carlos Pansonato-Alves
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
| | - Ricardo Utsunomia
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
| | - Cristian Araya-Jaime
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
| | | | - Sandro Natal Daniel
- Departamento de Ciências Biológicas, Faculdade de Ciências, Universidade Estadual Paulista, Campus de Bauru, Bauru, São Paulo, Brazil
| | - Diogo Teruo Hashimoto
- CAUNESP, Universidade Estadual Paulista, Campus Jaboticabal, Jaboticabal, São Paulo, Brazil
| | - Cláudio Oliveira
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
| | | | - Fábio Porto-Foresti
- Departamento de Ciências Biológicas, Faculdade de Ciências, Universidade Estadual Paulista, Campus de Bauru, Bauru, São Paulo, Brazil
| | - Fausto Foresti
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Distrito de Rubião Junior, Botucatu, São Paulo, Brazil
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Chiarini-Garcia H, Vieira FO, Godinho HP. Morphofunctional changes of female germinal epithelium to support spermatozoa along the annual reproductive cycle in an inseminating catfish (Trachelyopterus galeatus, Auchenipteridae). J Morphol 2013; 275:65-75. [DOI: 10.1002/jmor.20197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 06/04/2013] [Accepted: 08/12/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Hélio Chiarini-Garcia
- Departamento de Morfologia, Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais 31270-901 Brasil
| | - Francisco O. Vieira
- Departamento de Morfologia, Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais 31270-901 Brasil
| | - Hugo P. Godinho
- Departamento de Morfologia, Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais 31270-901 Brasil
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37
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Branco ISL, Viana DL, Félix RTS, Véras DP, Hazin FHV. Oocyte development and ovarian maturation of the black triggerfish, Melichthys niger(Actinopterygii: Balistidae) in São Pedro e São Paulo Archipelago, Brazil. NEOTROPICAL ICHTHYOLOGY 2013. [DOI: 10.1590/s1679-62252013000300013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oogenesis is a key stage in the reproductive development of an organism, which can be best understood from histological analysis of ovaries in different maturity stages. In order to provide information on the reproductive biology of the black triggerfish, M. niger, in particular on its oogenesis process, this study aimed at identifying and characterizing the oocyte development stages and its organization within the different stages of ovarian maturation based on specimens from São Pedro e São Paulo Archipelago. In this present report, a number of 294 ovaries were histologically analyzed. It was verified that they are composed of ovigerous lamellae containing oocytes at different development stages. Five different stages of oogenesis were identified: young cells, with an average size of 12.9 ìm; previtellogenic oocytes (perinucleolar), with an average size of 53.5 ìm; cortical-alveoli oocytes with an average size of 83.1 ìm; vitellogenic oocytes, with an average size of 160.4 ìm and mature oocytes, with an average size of 289.8 ìm. In addition to the germ cells, some somatic structures were also identified, such as: ovarian wall, follicular cells and blood vessels. Based on the type and number of oocytes observed, four stages of ovarian maturation were identified: early maturation, represented by only 2.2% of the sample; middle maturation, represented by 9.9%; mature, represented by 44.2% and resting, represented by 43.9%. The identification of five oocyte development stages in the ovarians from M. niger, suggested that the specie follows a pattern similar to that described for other marine fish.
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38
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Okuthe GE. DNA and RNA pattern of staining during oogenesis in zebrafish (Danio rerio): a confocal microscopy study. Acta Histochem 2013; 115:178-84. [PMID: 22795267 DOI: 10.1016/j.acthis.2012.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2012] [Revised: 06/19/2012] [Accepted: 06/20/2012] [Indexed: 11/18/2022]
Abstract
Oogenesis involves a sequence of cellular divisions and developmental changes leading to the formation of oocytes, whose role in development is to transfer genomic information to the next generation. During this process, the gene expression pattern changes considerably concomitant with genome remodeling, while genomic information is maintained. The development of the gonad in zebrafish is unique in that it goes through an initial ovarian phase and subsequently into either ovarian or testicular phases. How the germ cells choose to commit to an oogenic fate and enter meiosis or alternatively not to enter meiosis and commit to a spermatogenetic fate remains a key question in development. Lack of suitable markers has hampered the understanding of the principles controlling sex differentiation in zebrafish. The current study was aimed at finding substantive cytochemical markers to identify specific oocyte stages primarily focusing on the DNA and RNA component of cells, using fluorescent dyes: acridine orange and propidium iodide. The pattern of synthesis and appearance of nucleoli was stage specific and may be used to identify stages of oogenesis. A distinguishing and possibly diagnostic feature of the staining pattern observed was the low level of chromatin staining compared to other cellular structures. This may be related to the more diffuse state of chromatin that occurs prior to thickening of chromosomes from the pachytene stage onwards. Although the fluorescent dyes may be useful in determining the localization of nucleic acids in tissue sections, it was not possible to quantify the relative contribution of the DNA and RNA components of specific stages of oocyte growth.
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Affiliation(s)
- Grace Emily Okuthe
- Department of Zoology, Walter Sisulu University, P/B X1 Mthatha, 5117, South Africa.
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39
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Cassel M, Mehanna M, Mateus L, Ferreira A. Gametogenesis and reproductive cycle of Melanorivulus aff. punctatus (Boulenger, 1895) (Cyprinodontiformes, Rivulidae) in Chapada dos Guimarães, Mato Grosso, Brazil. NEOTROPICAL ICHTHYOLOGY 2013. [DOI: 10.1590/s1679-62252013000100021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The comprehension of the reproductive cycle allows to understand which are the morphological changes that develop in the gonad during this interval. Thus, many studies have been undertaken in order to describe and classify the stages of gonadal development and reproductive status of Neotropical fishes. For this purpose, specimens of Melanorivulus aff. punctatus were collected in a permanent dam in Chapada dos Guimarães, Mato Grosso, Brazil. The gonads were prepared for analysis by light microscopy. The oogenesis and spermatogenesis have been described, characterizing the stages of gonadal development, together with assessments of the gonadosomatic ratio, germ cell count and verification of variation of mature oocytes in females. Throughout the year the male gonads presented themselves as capable of reproducing, characterized by the presence of undifferentiated and differentiated spermatogonia, spermatocytes organized into cysts, spermatids in cysts whose wall was thicker and the spermatozoa was free in the lumen and the duct. This can indicate a continuous reproductive cycle with split spermiation. The females had gonads in the development stage from May to September with undifferentiated and differentiated oogonias and early oocytes always facing the lumen, abundant pre-vitellogenic and vitellogenic oocytes and some atresias. In the phase capable of spawning, observed from October to March, the mature oocytes are abundant, there are many post-ovulatory complexes and some atresia in advanced stage. The regression, observed in some individuals from February to April, is characterized by ovaries with many atresias and post-ovulatory complexes. The same results were found in the quantitative assessments. Therefore, it may be characterized as discontinuous cycle with split spawning. Thus, the reproductive cycle of this species can be characterized as continuous for males and discontinuous for females, which have a most intense phase of reproduction from October to March. However, both have fractional release of gametes.
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Affiliation(s)
| | - Mahmoud Mehanna
- Universidade Estadual Paulista "Julio de Mesquita Filho", Brazil
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40
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Female germ cell renewal during the annual reproductive cycle in Ostariophysians fish. Theriogenology 2013; 79:709-24. [DOI: 10.1016/j.theriogenology.2012.11.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Revised: 11/22/2012] [Accepted: 11/22/2012] [Indexed: 11/22/2022]
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41
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Fishelson L, Baldwin CC, Hastings PA. Gonad morphology, gametogenesis, and reproductive modes in fishes of the tribe Starksiini (Teleostei, Blenniiformes). J Morphol 2013; 274:496-511. [PMID: 23293058 DOI: 10.1002/jmor.20110] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 10/15/2012] [Accepted: 10/21/2012] [Indexed: 11/06/2022]
Abstract
A comparative study of the reproductive organs in 17 of the 30 species of the tribe Starksiini (Labrisomidae, Blenniiformes) and related labrisomids reveals the major traits of gamete form and production and likely reproductive modes. The testes are of the lobular type and have a testicular gland and sperm ducts. Isodiametric sperm (aquasperm) with a globular head or anisodiametric sperm (introsperm) with an elongate head, or both, were observed in the studied species. Both types have either one or two flagella in the sperm tail. Ovaries of the Starksiini are bilobed and exhibit synchronous or asynchronous egg production. Although viviparity or "ovoviviparity" reportedly characterizes the group, our study revealed evidence of both internal and external fertilization and three modes of reproduction. External fertilization or ovuliparity is suggested for the Starksia atlantica and S. lepicoelia species complexes by the presence in males of a short genital papilla that is not reinforced through adhesion with the first anal-fin spine and by the absence of sperm within the ovaries. Internal fertilization and zygoparity is indicated for most species by the presence of an intromittent papilla in males that is adhered to the first anal-fin spine, "nests" of sperm within the ovaries, absence of embryos within the ovarian lamellae and usually thick egg envelopes bearing dense covers of adhesive filaments. Internal fertilization and embryoparity is indicated for starksia fulva and Xenomedea rhodopyga by an intromittent papilla that is adhered to the first anal-fin spine of males, anisodiametric sperm in males, delicate egg envelopes without adhesive filaments and developing embryos within follicular envelopes or within the follicle in females. Although many of these features are seen in the internally fertilizing clinid blennies, starksiins differ in retaining the testicular gland typical of labrisomids and in lacking sperm packaging typical of other internally fertilizing teleosts.
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Affiliation(s)
- Lev Fishelson
- Deparment of Zoology, Tel Aviv University, Tel Aviv 69978, Israel
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42
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Woods DC, Tilly JL. An evolutionary perspective on adult female germline stem cell function from flies to humans. Semin Reprod Med 2013; 31:24-32. [PMID: 23329633 PMCID: PMC5545927 DOI: 10.1055/s-0032-1331794] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The concept that oogenesis continues into reproductive life has been well established in nonmammalian species. Recent studies of mice and women indicate that oocyte formation is also not, as traditionally believed, restricted to the fetal or perinatal periods. Analogous to de novo oocyte formation in flies and fish, newly formed oocytes in adult mammalian ovaries arise from germline stem cells (GSCs) or, more specifically, oogonial stem cells (OSCs). Studies of mice have confirmed that isolated OSCs, once delivered back into adult ovaries, are capable of generating fully functional eggs that fertilize to produce healthy embryos and offspring. Parallel studies of OSCs recently purified from ovaries of reproductive-age women indicate that these cells closely resemble their mouse ovary-derived counterparts, although the fertilization competency of oocytes generated by human OSCs awaits clarification. Despite the ability of OSCs to produce new oocytes during adulthood, oogenesis will still ultimately cease with age, contributing to ovarian failure. The causal mechanisms behind these events in mammals are unknown, but studies of flies have revealed that GSC niche dysfunction plays a critical role in age-related oogenic failure. Such insights derived from evaluation of nonmammalian species, in which postnatal oogenesis has been studied in depth, may aid in development of new strategies to alleviate ovarian failure and infertility in mammals.
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Affiliation(s)
- Dori C. Woods
- Vincent Center for Reproductive Biology, Massachusetts General Hospital
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, Massachusetts
| | - Jonathan L. Tilly
- Vincent Center for Reproductive Biology, Massachusetts General Hospital
- Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Boston, Massachusetts
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43
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Sales NG, dos Santos SA, Arantes FP, Hojo RES, dos Santos JE. Ovarian Structure and Oogenesis of CatfishPimelodella vittata(Lütken, 1874) (Siluriformes, Heptapteridae). Anat Histol Embryol 2012; 42:213-9. [DOI: 10.1111/ahe.12004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 08/08/2012] [Indexed: 11/30/2022]
Affiliation(s)
| | - S. A. dos Santos
- Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas; Av. Dom José Gaspar, 500, Coração Eucarístico; 30.535-610; Belo Horizonte; Minas Gerais; Brazil
| | - F. P. Arantes
- Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas; Av. Dom José Gaspar, 500, Coração Eucarístico; 30.535-610; Belo Horizonte; Minas Gerais; Brazil
| | - R. E. S. Hojo
- Programa de Pós-graduação em Zoologia de Vertebrados da PUC Minas; Av. Dom José Gaspar, 500, Coração Eucarístico; 30.535-610; Belo Horizonte; Minas Gerais; Brazil
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44
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Grier HJ. Development of the follicle complex and oocyte staging in red drum, sciaenops ocellatus linnaeus, 1776 (perciformes, sciaenidae). J Morphol 2012; 273:801-29. [DOI: 10.1002/jmor.20034] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 02/20/2012] [Accepted: 02/26/2012] [Indexed: 11/09/2022]
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45
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Jimenez-Martinez LD, Alvarez-González CA, Tovar-Ramírez D, Gaxiola G, Sanchez-Zamora A, Moyano FJ, Alarcón FJ, Márquez-Couturier G, Gisbert E, Contreras-Sánchez WM, Perales-García N, Arias-Rodríguez L, Indy JR, Páramo-Delgadillo S, Palomino-Albarrán IG. Digestive enzyme activities during early ontogeny in Common snook (Centropomus undecimalis). FISH PHYSIOLOGY AND BIOCHEMISTRY 2012; 38:441-454. [PMID: 21671023 DOI: 10.1007/s10695-011-9525-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2009] [Accepted: 06/03/2011] [Indexed: 05/30/2023]
Abstract
Common snook (Centropomus undecimalis) is one of the most important marine species under commercial exploitation in the Gulf of Mexico; for this reason, interest in developing its culture is a priority. However, larviculture remains as the main bottleneck for massive production. In this sense, our objective was to determine the changes of digestive enzymes activities using biochemical and electrophoretic techniques during 36 days of Common snook larviculture fed with live preys (microalgae, rotifers, and Artemia). During larviculture, all digestive enzymatic activities were detected with low values since yolk absorption, 2 days after hatching (dah) onwards. However, the maximum values for alkaline protease (6,500 U mg protein(-1)), trypsin (0.053 mU × 10(-3) mg protein(-1)), and Leucine aminopeptidase (1.4 × 10(-3) mU mg protein(-1)) were detected at 12 dah; for chymotrypsin at 25 dah (3.8 × 10(-3) mU mg protein(-1)), for carboxypeptidase A (280 mU mg protein(-1)) and lipase at 36 dah (480 U mg protein(-1)), for α-amylase at 7 dah (1.5 U mg protein(-1)), for acid phosphatases at 34 dah (5.5 U mg protein(-1)), and finally for alkaline phosphatase at 25 dah (70 U mg protein(-1)). The alkaline protease zymogram showed two active bands, the first (26.3 kDa) at 25 dah onwards, and the second (51.6 kDa) at 36 dah. The acid protease zymogram showed two bands (RF = 0.32 and 0.51, respectively) at 34 dah. The digestive enzymatic ontogeny of C. undecimalis is very similar to other strictly marine carnivorous fish, and we suggest that weaning process should be started at 34 dah.
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Affiliation(s)
- L D Jimenez-Martinez
- DACBIOL Laboratorio de Acuacultura, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, Mexico
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46
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Guerrero-Estévez S, Moreno-Mendoza N. Gonadal morphogenesis and sex differentiation in the viviparous fish Chapalichthys encaustus (Teleostei, Cyprinodontiformes, Goodeidae). JOURNAL OF FISH BIOLOGY 2012; 80:572-594. [PMID: 22380554 DOI: 10.1111/j.1095-8649.2011.03196.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This study describes the structural and ultrastructural characteristics of gonadal sex differentiation and expression of Vasa, a germline marker, in different developmental stages of embryos and newborn fry of the barred splitfin Chapalichthys encaustus, a viviparous freshwater teleost endemic to Mexico. In stage 2 embryos, the gonadal crest was established; gonadal primordia were located on the coelomic epithelium, formed by scarce germ and somatic cells. At stage 3, the undifferentiated gonad appeared suspended from the mesentery of the developing swimbladder and contained a larger number of germ and somatic cells. At stages 4 and 5, the gonads had groups of meiotic and non-meiotic germ cells surrounded by somatic cells; meiosis was evident from the presence of synaptonemal complexes. These stages constituted a transition towards differentiation. At stage 6 and at birth, the gonad was morphologically differentiated into an ovary or a testis. Ovarian differentiation was revealed by the presence of follicles containing meiotic oocytes, and testicular differentiation by the development of testicular lobules containing spermatogonia in mitotic arrest, surrounded by Sertoli cells. Nuage, electron-dense material associated with mitochondria, was observed in germ cells at all gonadal stages. The Vasa protein was detected in all of the previously described stages within the germ-cell cytoplasm. This is the first report on morphological characteristics and expression of the Vasa gene during sexual differentiation in viviparous species of the Goodeidae family. Chapalichthys encaustus may serve as a model to study processes of sexual differentiation in viviparous fishes and teleosts.
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Affiliation(s)
- S Guerrero-Estévez
- Department of Cell Biology and Physiology, Instituto de Investigaciones Biomedicas, Universidad Nacional Autonoma de Mexico, Apartado Postal 70228, Mexico DF 04510, Mexico
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47
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Spectrin labeling during oogenesis in zebrafish (Danio rerio). Acta Histochem 2012; 114:177-81. [PMID: 21531010 DOI: 10.1016/j.acthis.2011.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2011] [Revised: 03/25/2011] [Accepted: 03/27/2011] [Indexed: 11/20/2022]
Abstract
Progression through mitosis and meiosis during early zebrafish ovarian development is accompanied by highly regulated series of transformations in the architecture of oocytes. These cytoskeletal-dependent membrane events may be assumed to be brought about by deployment of proteins. While the cytoskeleton and its associated proteins play a pivotal role in each of these developmental transitions, it remains unclear how specific cytoskeletal proteins participate in regulating diverse processes of oocyte development in zebrafish. Results from this study show that a pool of spectrin accumulates during oogenesis and parallels an increase in volume of oocytes at pre-vitellogenic stages of development. Spectrin labeling is restricted to the surface of oogonia, the cortex of post-pachytene oocytes and later accumulates on the cytoplasm of pre-vitellogenic and vitellogenic oocytes. Results here suggest a correlation between spectrin labeling, increased cytoplasm volume of oocytes, an increase in the number of nucleoli and accumulation of cytoplasmic organelles. Overall, these results suggest that synthesis and storage of spectrin during pre-vitellogenic stages of oogenesis primes the egg with a pre-established pool of membrane-cytoskeletal precursors for use during embryogenesis, and that the presence of spectrin at the oocyte sub-cortex is essential for maintaining oocyte structure.
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48
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Apoptosis, cell proliferation and vitellogenesis during the folliculogenesis and follicular growth in teleost fish. Tissue Cell 2012; 44:54-62. [DOI: 10.1016/j.tice.2011.11.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 11/04/2011] [Accepted: 11/08/2011] [Indexed: 11/23/2022]
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49
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White YAR, Woods DC, Wood AW. A transgenic zebrafish model of targeted oocyte ablation and de novo oogenesis. Dev Dyn 2011; 240:1929-37. [PMID: 21761478 DOI: 10.1002/dvdy.22695] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
We describe here a novel transgenic zebrafish, Tg(zpc:G4VP16/UAS:nfsB-mCherry) that effectively demonstrates the targeted oocyte ablation in the adult zebrafish ovary. This transgenic line expresses bacterial nitroreductase enzyme (nfsB) under the control of the oocyte-specific zona pellucida C (zpc) gene promoter. Adult transgenic females exposed to the prodrug metronidazole demonstrated near-complete ablation of growing oocytes, resulting in ovarian degeneration and complete cessation of reproductive function. Within 4 weeks of prodrug removal, treated fish demonstrated complete anatomical regeneration of the ovary and, within 7 weeks, ovarian function (fertility) was fully restored. Together, these results demonstrate functional renewal of the oocyte pool in the adult zebrafish ovary. Accordingly, this transgenic zebrafish model system provides a novel means to investigate ovarian growth dynamics in a genetically tractable vertebrate, and may be useful for evaluating signaling interactions that regulate gonadal development processes such as de novo oogenesis.
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Affiliation(s)
- Yvonne A R White
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, Massachusetts, USA.
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50
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Carmen Uribe M, Grier HJ, Parenti LR. Ovarian structure and oogenesis of the oviparous goodeids Crenichthys baileyi (Gilbert, 1893) and Empetrichthys latos Miller, 1948 (teleostei, Cyprinodontiformes). J Morphol 2011; 273:371-87. [DOI: 10.1002/jmor.11028] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 06/22/2011] [Accepted: 08/02/2011] [Indexed: 11/05/2022]
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