Identification of SNPs in NPY and LEP and the association with food habit domestication traits in mandarin fish

Sun, Jian; He, Shan; Liang, Xu‐Fang; Li, Ling; Wen, Zhengyong; Zhu, Tao; Shen, Dan

doi:10.1007/s12041-014-0442-4

Cited by 8 publications

(7 citation statements)

References 24 publications

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“…It is well known that fish eat different foods, affecting different metabolic characteristics and immune abilities (Li et al, 2017;Yang et al, 2019). As a typical vertebrate herbivore, the grass carp likewise undergoes an extreme transformation from carnivory to herbivory, they experience increased appetite, a resetting of circadian phase, and enhanced digestion and metabolism (Sun et al, 2015). These are all examples of different animals adapting themselves FIGURE 6 | Heatmap of the correlation coefficients.…”

Section: Discussion Liver Transcriptomic Profile During Weaningmentioning

confidence: 99%

“…While the global demand for aquatic products strongly increased over the last 20 years, fisheries resources have sharply declined due to overfishing, prompting the aquaculture industry to rapidly increase its production, making it the fastest growing sector in the animal production field (FAO, 2018). However, many fishes have difficulty transitioning from live prey to formulated diets (weaning) as they mature through their larval stages, a transition that has consistently proven to be a major bottleneck in fish farming (Rønnestad et al, 2013;Sun et al, 2015). Weaning in aquaculture is the process of gradually replacing live prey with artificial feed in fish larvae.…”

Section: Introductionmentioning

confidence: 99%

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Co-modulation of Liver Genes and Intestinal Microbiome of Largemouth Bass Larvae (Micropterus salmoides) During Weaning

Zhao

Luo

et al. 2020

Front. Microbiol.

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In recent years, largemouth bass have become one of the most commonly aquacultured species in China, however, its low survival rate during larval weaning has always been a bottleneck that has restricted industrial development. Understanding the changes in liver metabolism and intestinal microflora during the weaning of largemouth bass larvae can help to design better weaning strategies and improve survival. In this study, liver mRNA and intestinal microflora 16S rRNA genes were analyzed using high-throughput sequencing at the pre, mid, and post weaning stages [15, 30, 45 days post hatching; total length (cm) were 2.21 ± 0.12, 3.45 ± 0.21, 5.29 ± 0.33, respectively]. The transcriptome results revealed that the genes with increased expression were related to amino acid metabolism in the pre-weaning stage, but they were related to fatty acid metabolism in the post-weaning stage. A similar phenomenon was observed in the intestinal microflora where the dominant microbe Proteobacteria (relative abundance 56.32%) in the pre-weaning stage was gradually replaced by Firmicutes (relative abundance 62.81%) by the post-weaning stage. In addition, the three most important digestive enzymes (trypsin, lipase, and amylase) in the intestine were significantly decreased during the mid-weaning stage (P < 0.05), which was also true for some genes crucial to immune pathways in the liver. Overall, these findings showed that weaning in largemouth bass can cause changes in liver metabolism and intestinal microbial communities, which has improved our understanding of fish adaptation to changes in food sources during weaning.

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Section: Discussion Liver Transcriptomic Profile During Weaningmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Co-modulation of Liver Genes and Intestinal Microbiome of Largemouth Bass Larvae (Micropterus salmoides) During Weaning

Zhao

Luo

et al. 2020

Front. Microbiol.

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“…Since then, NPY has been one of the most studied appetite-regulating hormones in fish. It has been cloned and/or shown to regulate feeding in several groups, including Characiformes (Pereira et al, 2015), Cypriniformes [(e.g., goldfish, zebrafish (Yokobori et al, 2012), blunt snout bream Megalobrama amblycephala (Xu et al, 2016), grass carp Ctenopharyngodon idellus (Jin et al, 2015), Jian carp ( Cyprinus carpio ) (Tang et al, 2014), Ya fish (Wei et al, 2014)], Gadiformes (Atlantic cod Kortner et al, 2011; Tuziak et al, 2014); Gonorynchiformes (milkfish Chanos chanos , Lin et al, 2016); Perciformes (yellowtail Seriola quinqueradiata Hosomi et al, 2014, Astatotilapia burtoni Grone et al, 2012, cunner Tautogolabrus adspersus Babichuk and Volkoff, 2013, orange-spotted grouper Epinephelus coioides Tang et al, 2013, sea bass Leal et al, 2013, mandarin fish, Siniperca chuatsi Sun et al, 2014, cobia Rachycentron canadum Van Nguyen et al, 2013, gourami Trichogaster pectoralis Boonanuntanasarn et al, 2012); Pleuronectiformes (olive flounder Wang et al, 2015, winter flounder MacDonald and Volkoff, 2009a, Brazilian flounder Paralichthys orbignyanus Campos et al, 2012), Salmoniformes (e.g., rainbow trout Oncorhynchus mykiss Aldegunde and Mancebo, 2006, Atlantic salmon Valen et al, 2011; Kim et al, 2015), Siluriformes (channel catfish, Peterson et al, 2012; Schroeter et al, 2015); Tetraodontiformes (tiger puffer Takifugu rubripes Kamijo et al, 2011) as well as elasmobranchs [(e.g., winter skate Leucoraja ocellata , Rajiforme (MacDonald and Volkoff, 2009b) and spotted catshark ( Scyliorhinus canicula , Carcharhiniforme) Mulley et al, 2014)] and holocephalans (elephant fish Chimaeriformes; Larsson et al, 2009). The majority of these studies indicate that NPY has a widespread distribution and is present in both brain and intestinal tract, that it acts as an orexigenic factor and that its expression is affected by feeding and fasting.…”

Section: Hormones Involved In Food Intakementioning

confidence: 99%

The Neuroendocrine Regulation of Food Intake in Fish: A Review of Current Knowledge

2016

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Fish are the most diversified group of vertebrates and, although progress has been made in the past years, only relatively few fish species have been examined to date, with regards to the endocrine regulation of feeding in fish. In fish, as in mammals, feeding behavior is ultimately regulated by central effectors within feeding centers of the brain, which receive and process information from endocrine signals from both brain and peripheral tissues. Although basic endocrine mechanisms regulating feeding appear to be conserved among vertebrates, major physiological differences between fish and mammals and the diversity of fish, in particular in regard to feeding habits, digestive tract anatomy and physiology, suggest the existence of fish- and species-specific regulating mechanisms. This review provides an overview of hormones known to regulate food intake in fish, emphasizing on major hormones and the main fish groups studied to date.

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“…In recent years, some studies have been performed on the domestication for mandarin fish [1,2,30,31]. It is confirmed that fish size, breeding density, starvation time, and artificial feed quality are closely related to the efficiency of mandarin fish culture [32].…”

Section: Fish Domesticationmentioning

confidence: 90%

“…High-quality transcriptomes and a large set of gene-linked SNPs would facilitate functional and population genomic studies in endangered species [ 56 ]. Studies on molecular markers in mandarin fish have been conducted, including food habit domestication traits (SNP) [ 30 ], growth traits (SNP) [ 57 ] and SSR [ 58 ], and population genetic analysis (SSR) [ 59 ]. These studies were performed in S .…”

Section: Discussionmentioning

confidence: 99%

Transcriptome analysis of the growth performance of hybrid mandarin fish after food conversion

2020

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During recent years, China has become a hotspot for the domestication of mandarin fish, and this is of great commercial value. Although the food preference of domesticated mandarin fish has been studied, little is known about genes regulating their growth. We raised hybrid mandarin fish on artificial feed for 3 months, the results showed that the survival rate of hybrid mandarin fish was 60.00%. Their total length and body weight were 18.34 ±0.43 cm and 100.44 ±4.87 g. The absolute length and weight gain rates were 0.14 cm/d and 1.08 g/d, respectively. Finally, RNA sequencing (RNA-Seq) was performed to identify potential genes and pathways activated in response to growth performance. The transcriptome analysis generated 68, 197 transcripts and 45,871 unigenes. Among them, 1025 genes were up-regulated and 593 genes were down-regulated between the fast-and slow-growth fish. Finally, we obtained 32 differentially expressed genes, which were mainly related to fatty acid biosynthesis (e.g. FASN and ACACB), collecting duct acid secretion (e.g. ATP6E and KCC4), cell cycle (e.g. CDC20 and CCNB), and the insulin-like growth factor (IGF) system (IGFBP1). These pathways might be related to the growth of hybrid mandarin fish. In addition, more potential single nucleotide polymorphisms (SNPs) were detected in the fastgrowth fish than in the slow-growth fish. The results suggest that the interaction of metabolism and abundant alleles might determine the growth of hybrid mandarin fish after food conversion.

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Identification of SNPs in NPY and LEP and the association with food habit domestication traits in mandarin fish

Cited by 8 publications

References 24 publications

Co-modulation of Liver Genes and Intestinal Microbiome of Largemouth Bass Larvae (Micropterus salmoides) During Weaning

Co-modulation of Liver Genes and Intestinal Microbiome of Largemouth Bass Larvae (Micropterus salmoides) During Weaning

The Neuroendocrine Regulation of Food Intake in Fish: A Review of Current Knowledge

Transcriptome analysis of the growth performance of hybrid mandarin fish after food conversion

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