Effects of temperature upon ablation-to-molt interval and mortality of red swamp crawfish (Procambarus clarkii) subjected to bilateral eyestalk ablation

Chen, Shulin; Wu, Jingwei; Huner, Jay V.; Malone, Ronald F.

doi:10.1016/0044-8486(95)01086-6

Cited by 10 publications

(12 citation statements)

References 10 publications

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“…Since moulting is directly related to muscle development and growth in crustaceans, experimental approaches have been trialled to affect growth rate and eyestalk ablation appears to be the most effective way of influencing moulting and growth because it affects the endocrine system directly (Chen et al . ). Several studies have also shown that eyestalk factors can impact individual growth rates (Chen et al .…”

Section: Candidate Genes Correlated With Growthmentioning

confidence: 97%

“…Several studies have also shown that eyestalk factors can impact individual growth rates (Chen et al . ; Venkitraman et al . ; Allayie et al .…”

Section: Candidate Genes Correlated With Growthmentioning

confidence: 99%

“…Applying bilateral eyestalk ablation, however, should be approached cautiously since it can cause mortality (Chen et al . , ) and is not considered realistic on an industrial scale. Characterization of the gene products expressed within the eyestalk, however, may yield important gene candidates for future studies.…”

Section: Candidate Genes Correlated With Growthmentioning

confidence: 99%

“…Eyestalks in crustaceans contain neurosecretory cells that have been considered to be involved in regulation of moulting, and this structure can affect ecdysteroid secretion from the YO (Hopkins 2012). Since moulting is directly related to muscle development and growth in crustaceans, experimental approaches have been trialled to affect growth rate and eyestalk ablation appears to be the most effective way of influencing moulting and growth because it affects the endocrine system directly (Chen et al 1995). Several studies have also shown that eyestalk factors can impact individual growth rates (Chen et al 1995;Venkitraman et al 2004;Allayie et al 2011).…”

Section: Eyestalk Factorsmentioning

confidence: 99%

See 3 more Smart Citations

Genes and growth performance in crustacean species: a review of relevant genomic studies in crustaceans and other taxa

Jung

Lyons

Hurwood

et al. 2013

Reviews in Aquaculture

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Global aquaculture has expanded rapidly to address the increasing demand for aquatic protein needs and an uncertain future for wild fisheries. To date, however, most farmed aquatic stocks are essentially wild and little is known about their genomes or the genes that affect important economic traits in culture. Biologists have recognized that recent technological advances including next generation sequencing (NGS) have opened up the possibility of generating genome wide sequence data sets rapidly from non‐model organisms at a reasonable cost. In an era when virtually any study organism can ‘go genomic’, understanding gene function and genetic effects on expressed quantitative trait locus phenotypes will be fundamental to future knowledge development. Many factors can influence the individual growth rate in target species but of particular importance in agriculture and aquaculture will be the identification and characterization of the specific gene loci that contribute important phenotypic variation to growth because the information can be applied to speed up genetic improvement programmes and to increase productivity via marker‐assisted selection (MAS). While currently there is only limited genomic information available for any crustacean species, a number of putative candidate genes have been identified or implicated in growth and muscle development in some species. In an effort to stimulate increased research on the identification of growth‐related genes in crustacean species, here we review the available information on: (i) associations between genes and growth reported in crustaceans, (ii) growth‐related genes involved with moulting, (iii) muscle development and degradation genes involved in moulting and (iv) correlations between DNA sequences that have confirmed growth trait effects in farmed animal species used in terrestrial agriculture and related sequences in crustacean species. The information in concert can provide a foundation for increasing the rate at which knowledge about key genes affecting growth traits in crustacean species is gained.

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Section: Candidate Genes Correlated With Growthmentioning

confidence: 97%

“…Several studies have also shown that eyestalk factors can impact individual growth rates (Chen et al . ; Venkitraman et al . ; Allayie et al .…”

Section: Candidate Genes Correlated With Growthmentioning

confidence: 99%

Section: Candidate Genes Correlated With Growthmentioning

confidence: 99%

Section: Eyestalk Factorsmentioning

confidence: 99%

See 2 more Smart Citations

Genes and growth performance in crustacean species: a review of relevant genomic studies in crustaceans and other taxa

Jung

Lyons

Hurwood

et al. 2013

Reviews in Aquaculture

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“…Thus on removal of eyestalk causes increase of ecdysteroid secretion from Y-organ which includes precocious molting in many decapods species [6][7][8][9]. On removal of eyestalk, mortality increases because it removes four ganglia from each eyestalk, a considerable portion of central nervous system thereby induces hormonal imbalance and stress [10]. Besides this decreased hemolymph osmolarity by ESX has been reported in crustaceans [11,12] Along with growth unilateral ESX also shortens molt interval and stimulate gonad maturation is evidenced in several crustaceans like Metapenaeus dobsoni [12] Astacus leptodactylus [13] scylla serrata [8].…”

Section: Introductionmentioning

confidence: 99%

Natural and Induced (Eyestalk Ablation) Molt Cycle in Freshwater Rice Field Crab Oziothelphusa Senex Senex

Pamuru¹,

Hosani²

2016

J Aquac Res Development

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In crustaceans, molting is the process of shedding old exoskeleton and is required for the somatic growth of new exoskeleton for its growth. The molting processes in crustaceans vary from one species to other and also vary with the environmental conditions. In the present study the molt cycle of freshwater crab Oziothelphusa senex senex was studied. The size of crabs selected for the study is 30 ± 2 g. The natural molt cycle is consisting of intermolt (C1, C2, C3 and C4), premolt (D1, D2, D3 and D4), ecdysis (E) and post molt (A1, A2, B1 and B2) stages were measured and the percentage of each stage in the molt cycle was calculated. The biggest stage in the O. senex senex molt cycle is intermolt stage (90.0%) and shortest one is ecdysis (0.01%). Induced molt cycle was studied by eyestalk extirpation (ESX) and observed that 60.71% of male crabs and 52.0% female crabs were molted after 28th day of extirpation suggesting the role of eyestalk principle in regulating the molting process.

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Histopathological characterization and in situ hybridization of a novel spiroplasma pathogen in the freshwater crayfish Procambarus clarkii

Ding

Yao

et al. 2013

Aquaculture

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Effects of temperature upon ablation-to-molt interval and mortality of red swamp crawfish (Procambarus clarkii) subjected to bilateral eyestalk ablation

Cited by 10 publications

References 10 publications

Genes and growth performance in crustacean species: a review of relevant genomic studies in crustaceans and other taxa

Genes and growth performance in crustacean species: a review of relevant genomic studies in crustaceans and other taxa

Natural and Induced (Eyestalk Ablation) Molt Cycle in Freshwater Rice Field Crab Oziothelphusa Senex Senex

Histopathological characterization and in situ hybridization of a novel spiroplasma pathogen in the freshwater crayfish Procambarus clarkii

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