Absence of temperature-dependent sex determination in northern populations of two cyprinodontid fishes

Conover, David O.; DeMond, S. Brett

doi:10.1139/z91-080

Cited by 18 publications

(9 citation statements)

References 13 publications

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“…In light of the adaptive significance of TSD demonstrated in M. menidia, the hypothesis that other fish with similar life histories could also present TSD has been tested in two cyprinodontid fish, Cyprinodon 6arie-gatus and Fundulus heteroclitus [225]. Contrary to the expected hypothesis 7 , low temperatures do not produce female offspring in F. heteroclitus nor do they generate male progenies in C. 6ariegatus (43-58% females at 15, 18, 21 and 28°C).…”

Section: Absence Of Temperature-dependent Sex Determination In Fishmentioning

confidence: 99%

Endocrine and environmental aspects of sex differentiation in fish

Baroiller¹,

Guiguen²,

Fostier³

1999

CMLS, Cell. Mol. Life Sci.

403

274

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This paper reviews the current knowledge differentiation, new data, including molecular apconcerning the endocrine and environmental regula-proaches, have confirmed that they are key physiologitions of both gonadal sex differentiation in gonocho-cal steps in the regulation of this process. Environmental factors can strongly influence sex differentiaristic and sex inversion in hermaphroditic fish. Within the central nervous system, gonadotropins seem to tion and sex inversion in gonochoristic and hermaphroditic fish, respectively. The most important play a role in triggering sex inversion in hermaphroditic fish. In gonochorists, although potentially ac-environmental determinant of sex would appear to be temperature in the former species, and social factors tive around this period, the hypothalamo-pituitary axis is probably not involved in triggering sex differ-in the latter. Interactions between environmental factors and genotype have been suggested for both gonoentiation. Although steroids and steroidogenic enzymes are probably not the initial triggers of sex choristic and hermaphroditic fish.

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Section: Absence Of Temperature-dependent Sex Determination In Fishmentioning

confidence: 99%

Endocrine and environmental aspects of sex differentiation in fish

Baroiller¹,

Guiguen²,

Fostier³

1999

CMLS, Cell. Mol. Life Sci.

403

274

View full text Add to dashboard Cite

show abstract

“…Even studies that test for but do not find TSD (Conover and Demond 1991) may reflect only the status of a particular population, not the species as a whole. But in most fishes where TSD has been reported, it is not clear whether thermal influences occur only at extreme, and therefore ecologically irrelevant, temperatures, or represent true mechanisms of TSD.…”

Section: Discussionmentioning

confidence: 99%

Temperature-Dependent Sex Determination in Vertebrates

Valenzuela¹,

Lance²

2018

Open Monographs

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“…In general, for most temperature-sensitive species, the ratio of males to females is increased at higher temperatures [30]. However, species such as Gambusia affinis and Coregonus hoyi are entirely temperature-independent [31]. Yamaguchi et al [32] studied molecular mechanisms of temperature-dependent sex determination in the Japanese flounder, Paralichthys olivaceus.…”

Section: Environmental Sex Determinationmentioning

confidence: 99%

Progress in studies of fish reproductive development regulation

Zhu

2012

Chin. Sci. Bull.

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Mechanisms of the animal reproductive development are an important research field in life sciences. The study of the reproductive development and regulatory mechanisms in fishes is important for elucidating the mechanisms of animal reproduction. This paper summarizes recent advances in the mechanisms of fish sex determination and differentiation, of fish gonad development and maturation, and of fish germ cell development, as well as the according regulating strategies. Fishes comprise an evolutionary stage that links invertebrates and higher vertebrates. They include diversiform species, and almost all vertebrate types of reproduction have been found in fishes. All these will lead to important advances in the regulatory mechanisms of animal reproduction by using fishes as model organisms. It will also enable novel fish breeding techniques when new controllable on-off strategies of reproduction and/or sex in fishes have been developed. fish, reproduction, regulation Citation:Chen J, Hu W, Zhu Z Y. Progress in studies of fish reproductive development regulation. Chin Sci Bull, 2013, 58: 716, doi: 10.1007/s11434-012-5577-1As low vertebrates, fishes are on an evolutionary stage linking invertebrates and higher vertebrates. There are as many as 28000 known fish species, which show large diversity. A range of sexual characteristics and reproductive strategies has been described for fishes, and almost all reproductive types of vertebrates have been found in fishes. The study of fish reproductive development regulation is important for elucidating mechanisms of animal reproductive development. Molecular breeding will reveal finer varieties when genes and regulatory networks associated with economically important traits (such as fast growth, disease resistance, cold tolerance and hypoxia tolerance) in fishes are discovered [1]. Reproduction also provides a precondition for culturing exclusive fish breeds and expanding fish populations. Breeding techniques such as sexual control and fertility control have played important roles in developing new fish varieties. This paper will review advances of fish reproductive development regulation, with the aim of providing hints for mechanisms of fish reproductive development, as well as providing theoretical guidance for techniques of reproductive regulation and developing highyielding, efficient, eco-friendly breeds.1 Sexual control of fishes Factors influencing sex determinationThe sex differentiation pattern and determination mechanism of fishes are very diverse. Various sexual phenotypes are all present in fishes, such as hermaphroditism, unisexuality, gonochorism and dual reproduction mode including parthenogenesis and sexual reproduction [2]. For those fishes in which sex chromosome systems exist, there are single chromosome systems, such as XX/XY, ZZ/ZW, XX/ XO and ZZ/ZO, and multiple chromosome systems, such as XX/XY 1 Y 2 , ZZ/ZW 1 W 2 , X 1 X 2 X 1 X 2 /X 1 X 2 Y, and X 1 X 2 X 1 X 2 / X 1 X 2 X 1 . Like other animals, fish sex differentiation is controlled by their gene...

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Absence of temperature-dependent sex determination in northern populations of two cyprinodontid fishes

Cited by 18 publications

References 13 publications

Endocrine and environmental aspects of sex differentiation in fish

Endocrine and environmental aspects of sex differentiation in fish

Temperature-Dependent Sex Determination in Vertebrates

Progress in studies of fish reproductive development regulation

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