A review of sex determination and searches for sex-specific markers in sturgeon

Keyvanshokooh, Saeed; Gharaei, Ahmad

doi:10.1111/j.1365-2109.2009.02463.x

Cited by 52 publications

(36 citation statements)

References 52 publications

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“…Sturgeons are presumed to be female heterogametic (Fopp-Bayat 2010; Keyvanshokooh and Gharaei 2010). Possible fertility of male hybrids of species with different ploidy corresponds to Haldane's rule, which assumes that, in hybrids, only the homogametic sex is fully fertile, while the heterogametic sex is sterile (Haldane 1922).…”

Section: Discussionmentioning

confidence: 99%

Interspecific hybridization of sturgeon species affects differently their gonadal development

Linhartová¹,

Havelka²,

Pšenička³

et al. 2018

CZECH J ANIM SCI

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Linhartová Z., Havelka M., Pšenička M., Flajšhans M. (2018): Interspecific hybridization of sturgeon species affects differently their gonadal development. Czech J. Anim. Sci., 63, 1-10.Gonad development in fish is generally assumed to be negatively influenced by interspecific hybridization, resulting in sterility or sub-sterility. However, this is not the case in sturgeons (Acipenseridae), in which fertile hybrids are common. In the present study, we investigated gonad development in several sturgeon interspecific hybrids and purebred species. Six interspecific hybrid groups and three purebred groups were analyzed including 20 hybrid specimens with even ploidy, 40 specimens having odd ploidy levels, and 30 purebred specimens. Hybrids of species with the same ploidy (even ploidy -2n, 4n) exhibited normally developed gonads similar to those seen in purebred specimens. In contrast, hybrids of species differing in ploidy (odd ploidy -3n) did not display fully developed gonads. Ovaries were composed of oocytes or nests of differentiating oocytes that ceased development in early stages of meiosis (pachytene to zygotene) with a higher content of adipose and apoptotic tissue. Testes contained single spermatogonia along with Sertoli cells and spaces lacking germ cells. The obtained results showed that gonad development was influenced by genetic origin and ploidy of the sturgeon hybrids and were consistent with full fertility of hybrids with even ploidy. Sterility of females, but possibly limited fertility of males, is suggested for hybrids with odd ploidy.

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Section: Discussionmentioning

confidence: 99%

Interspecific hybridization of sturgeon species affects differently their gonadal development

Linhartová¹,

Havelka²,

Pšenička³

et al. 2018

CZECH J ANIM SCI

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“…To establish gonad-derived cell lines, we used a 1-year-old A. baerii of which sex cannot be indentified externally (Keyvanshokooh and Gharaei, 2010). Unfortunately, we could not carry out histological inspection of gonad tissues from which the cell lines were originated due to a lack of available sample.…”

Section: Discussionmentioning

confidence: 99%

Establishment and long-term culture of the cell lines derived from gonad tissues of Siberian sturgeon (Acipenser baerii)

2016

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To culture germline stem cells in vitro, establishment of the cell lines that can be used as the feeder cells is a prerequisite. In this study, we tried to establish gonad-derived cell lines in Siberian sturgeon (Acipenser baerii). Five 1-year-old A. baerii were used as a donor of gonad tissues, and gonad-dissociated cells were cultured in vitro. Subsequently, determination of growth conditions, long-term culture, characterization, and cryopreservation of the cell lines were also conducted. Five gonad-derived cell lines were stably established and cultured continuously over at least the 73th passage and 402 culture days under the media containing 20 % fetal bovine serum at 28°C. All cell lines consisted of two main cell types based on morphology even if the ratio of the two cell types was different depending on cell lines. Despite long-term culture, all cell lines maintained diploid DNA contents and expression of several genes that are known to express in the A. baerii gonad. After freezing and thawing of the cell lines, post-thaw cell viabilities between 57.6 and 92.9 % depending on cell lines were indentified, suggesting that stable cryopreservation is possible. The results and the cell lines established in this study will contribute to the development of an in vitro system for A. baerii germline stem cell culture.

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“…These data are important for outputs such as generating population models used to estimate sustainable harvest levels and assessing risk of extinction or recovery by the species (Walker, 2005). However, these types of data are poorly characterized for the majority of systems inhabited by Atlantic sturgeon because of their large size, high mobility, depleted stock status, undetermined sex-specific genes and lack of external sexual dimorphism (Scott and Crossman, 1973; ASSRT, 2007; Keyvanshokooh and Gharaei, 2010). Thus, the acquisition of this information has largely been through lethal or sublethal techniques, such as gross dissections (e.g.…”

Section: Introductionmentioning

confidence: 99%

Using circulating reproductive hormones for sex determination of Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) in the Saco River estuary, Maine

et al. 2016

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A review of sex determination and searches for sex-specific markers in sturgeon

Cited by 52 publications

References 52 publications

Interspecific hybridization of sturgeon species affects differently their gonadal development

Interspecific hybridization of sturgeon species affects differently their gonadal development

Establishment and long-term culture of the cell lines derived from gonad tissues of Siberian sturgeon (Acipenser baerii)

Using circulating reproductive hormones for sex determination of Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) in the Saco River estuary, Maine

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