{"id":4716,"date":"2014-06-01T10:33:00","date_gmt":"2014-06-01T14:33:00","guid":{"rendered":"http:\/\/ncseagrant.ncsu.edu\/coastwatch\/?page_id=4716"},"modified":"2024-08-27T15:27:03","modified_gmt":"2024-08-27T19:27:03","slug":"sea-science-gene-groups-key-to-embryo-development","status":"publish","type":"post","link":"https:\/\/ncseagrant.ncsu.edu\/coastwatch\/sea-science-gene-groups-key-to-embryo-development\/","title":{"rendered":"SEA SCIENCE: Gene Groups Key to Embryo Development"},"content":{"rendered":"\n\n\n\n\n

<\/h3>\n\n\n\n

View PDF here<\/a>.<\/p>\n\n\n\n

A team of scientists from North and South Carolina has discovered that interactions among a small group of genes influence egg quality, a key part of all vertebrates’ ability to reproduce, including humans. Results of this research, funded in part by North Carolina Sea Grant<\/a> and the South Carolina Sea Grant Consortium<\/a>, are published in the Open Access Journal, Plos One<\/a><\/em>.<\/p>\n\n\n\n

\"striped
Striped bass are popular with both anglers and chefs. Photo by Benjamin Reading.<\/figcaption><\/figure>\n\n\n\n

The researchers worked with striped bass (Morone saxatilis<\/em>), a finfish used in aquaculture that experiences arrested development in eggs. Poor egg quality, or the inability of eggs to produce viable embryos, is considered a major limiting factor for the development of global finfish aquaculture. This problem has long been studied in agriculture and human reproductive medicine.<\/p>\n\n\n\n

\u201cDiscovering the root cause of poor egg quality has been the holy grail of aquaculture research and development for decades,\u201d says project leader Craig Sullivan, a retired NC State University Distinguished Professor and founder of Carolina AquaGyn. Sullivan is one of three authors of the paper.<\/p>\n\n\n\n

Employing gene expression data and computer modeling, the researchers found that coordinated interactions of a group of 233 genes, or less than 2 percent of all of the expressed genes in the egg, explains more than 90 percent of initial embryo survival.<\/p>\n\n\n\n

“Every one of the genes’ contributions to the trait is miniscule, but together, this suite of genes influence egg quality,” says Benjamin Reading, a researcher with NC State and co-author of the paper.<\/p>\n\n\n

\n
\"hybrid
Crossed with white bass, they become hybrid striped bass, a species that plays a big role in North Carolina’s aquaculture industry. Photo by Scott Taylor.<\/figcaption><\/figure><\/div>\n\n\n

According to Reading, these findings may help aquaculturists select fish that have the highest probability of producing many viable eggs. Additionally, fisheries managers may be able to better evaluate what percentage of females in the wild population is likely to produce viable eggs and subsequently modify management strategies.<\/p>\n\n\n\n

Robert Chapman, of the S.C. Department of Natural Resources and Hollings Marine Laboratory and co-author on the paper, notes that because embryos of all vertebrates are similar during the early stages of development, the findings could add to knowledge in the field of human reproductive medicine. \u201cAs infertility is increasing in humans from developed nations, our work may provide some clues to this problem. As a striper female will produce 1,000 times as many eggs in a single year as a human female will produce in her lifetime, we can perform experiments and studies in stripers that would be impossible in mammals including humans.”<\/p>\n\n\n\n

Rick DeVoe, executive director of the South Carolina Sea Grant Consortium, notes that the research has direct application to business, industry and public health. “It demonstrates that modest investments in collaborative research can result in significant, socially relevant applications,” he says.<\/p>\n\n\n\n

North Carolina Sea Grant and South Carolina Sea Grant Consortium have been national leaders in finfish aquaculture for more than 30 years. \u201cStriped bass aquaculture remains an important research interest for our program,\u201d says John Fear, North Carolina Sea Grant deputy director. \u201cEven today we are providing seed funds to advance the protocols being used to rear these fish.\u201d<\/p>\n\n\n\n

The paper, \u201cOvary Transcriptome Profiling via Artificial Intelligence Reveals a Transcriptomic Fingerprint Predicting Egg Quality in Striped Bass, Morone saxatilis<\/em>,\u201d is published in the open access journal, PLOS ONE<\/em>, available at www.plosone.org<\/a>.<\/p>\n\n\n\n

Additional funding for the project came from the NOAA Center of Excellence in Oceans and Human Health Center for Marine Genomics at Hollings Marine Laboratory and from the U.S. Department of Agriculture National Institute of Food and Agriculture.<\/p>\n\n\n\n

This article was published in the Summer 2014<\/a> issue of Coastwatch.<\/em><\/p>\n\n\n\n

For contact information and reprint requests, visit <\/em>ncseagrant.ncsu.edu\/coastwatch\/contact\/<\/em><\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

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