Screening and characterization of sex-linked DNA markers in Mozambique tilapia (Oreochromis mossambicus)

Zhu, Xuemei; Cao, Jianhua; Xiao, Hesheng; Dong, Jing; Köcher, Thomas; Lu, Maixin; Wang, Deshou

doi:10.1016/j.aquaculture.2022.738331

Cited by 2 publications

(3 citation statements)

References 62 publications

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“…Another study 84 showed that in O. mossambicus , the sex‐determining loci were located in LG14 and in LG3. Sex‐linked DNA markers were also identified in LG14 and in LG3 in O. mossambicus 101 . In red tilapia, QTL mapping of sex‐determining loci in four mapping families with 1090 fish identified two QTL for sex in LG1 and LG23 102 .…”

Section: Status Of Breeding Salinity‐tolerant Tilapiamentioning

confidence: 98%

“…Sex-linked DNA markers were also identified in LG14 and in LG3 in O. mossambicus. 101 In red tilapia, QTL mapping of sex-determining loci in four mapping families with 1090 fish identified two QTL for sex in LG1 and LG23. 102 A QTL on LG1 was detected in three families, and the other QTL on LG23 was detected in two of the four families.…”

Section: Sex Determinationmentioning

confidence: 99%

“…Segregating populations were generated by crossing the interspecies hybrids. By using MAS with DNA markers associated with growth, colour and sex identified in previous QTL mapping stocks, 100,101,117 fast-growing and salinity-tolerant individuals are being selected. Furthermore, YY males were generated (our unpublished data) and are being used to generate all-male stock for commercial production in Singapore and neighbouring countries.…”

Section: F I G U R Ementioning

confidence: 99%

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Status of conventional and molecular breeding of salinity‐tolerant tilapia

Yue

Xia

2023

Reviews in Aquaculture

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Aquaculture is an important sector for ensuring global food security. Due to the scarcity of freshwater available for expanding aquaculture, the development of omnivorous fish species and varieties that can tolerate high salinity will enhance fish production. Some tilapia species are good candidates for aquaculture in brackish and seawater because they can grow in high salinity. Among tilapia species, Oreochromis mossambicus, Oreochromis aureus, Oreochromis spilurus, Oreochromis urolepis hornorum, Sarotherodon galilaeus and Coptodon zillii are the most salinity‐tolerant. Hybrids derived from salinity‐tolerant tilapia species are tolerant to a certain level of salinity. They have been used in aquaculture production in brackish water and full seawater. Conventional selective breeding has been applied to increase the growth rate of salinity‐tolerant tilapias. However, their growth rate is lower than that of the freshwater Oreochromis niloticus. Recently, many genomic resources and tools have been developed for salinity‐tolerant tilapia. Quantitative trait locus (QTL) mapping and genome‐wide association studies (GWAS) for important economic traits, including salinity tolerance and other desired traits, have been carried out and applied in molecular breeding for superior salinity‐tolerant tilapia lines. In this review, we systematically analysed tilapia species that can be cultured in brackish and saltwater. We summarized previous works in conventional breeding and molecular breeding for salinity‐tolerant tilapia. We pointed out a few known and potential challenges in the selective breeding and culture of salinity‐tolerant tilapia. Due to the rapid advances in molecular and other disruptive technologies, we are optimistic that novel breeding approaches will significantly increase the production salinity‐tolerant tilapia.

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Section: Status Of Breeding Salinity‐tolerant Tilapiamentioning

confidence: 98%

Section: Sex Determinationmentioning

confidence: 99%