Question: AquAdvantage salmon includes a growth hormone-regulating gene from which Pacific salmon genus?
Context: Salmon population levels are of concern in the Atlantic and in some parts of the Pacific.  Salmon fishery stocks are still abundant, and catches have been on the rise in recent decades, after the state initiated limitations in 1972.  Some of the most important Alaskan salmon sustainable wild fisheries are located near the Kenai River, Copper River, and in Bristol Bay.  Fish farming of Pacific salmon is outlawed in the United States Exclusive Economic Zone, however, there is a substantial network of publicly funded hatcheries, and the State of Alaska's fisheries management system is viewed as a leader in the management of wild fish stocks.  In Canada, returning Skeena River wild salmon support commercial, subsistence and recreational fisheries, as well as the area's diverse wildlife on the coast and around communities hundreds of miles inland in the watershed.  The status of wild salmon in Washington is mixed.  Out of 435 wild stocks of salmon and steelhead, only 187 of them were classified as healthy; 113 had an unknown status, 1 was extinct, 12 were in critical condition and 122 were experiencing depressed populations. The salmon run is the time when salmon, which have migrated from the ocean, swim to the upper reaches of rivers where they spawn on gravel beds.  After spawning, all Pacific salmon and most Atlantic salmon die, and the salmon life cycle starts over again.  The annual run can be a major event for grizzly bears, bald eagles and sport fishermen.  Most salmon species migrate during the fall (September through November). The chum salmon ("Oncorhynchus keta") is a species of anadromous fish in the salmon family.  It is a Pacific salmon, and may also be known as dog salmon or keta salmon, and is often marketed under the name silverbrite salmon.  The name chum salmon comes from the Chinook Jargon term "tzum", meaning "spotted" or "marked", while "keta" in the scientific name comes from the Evenki language of Eastern Siberia via Russian. Puget Sound salmon recovery is a collective effort of federal, state and local authorities and non-profit coalitions of universities, scientists, business and industry aimed at restoring Pacific salmon and anadromous forms of Pacific trout ("Oncorhynchus") within the Puget Sound region.  The Puget Sound lies within the native range of the Pacific Salmon ("Oncorhynchus") and two sea-run forms of Pacific trout, the coastal rainbow trout ("O. mykiss irideus") or steelhead and coastal cutthroat trout ("O. clarki clarki").  Populations of "Oncorhynchus" have seen significant declines since the middle of the 19th century due to over fishing, habitat loss, pollution and disease.  Salmon species residing in or migrating through the Puget Sound to spawning streams include Chum ("O. keta"), Coho ("O. kisutch"), Chinook ("O. tshawytscha"), Sockeye ("O. nerka"), and Pink salmon ("O. gorbuscha").  Pacific salmon require freshwater rivers for spawning and most major tributaries of the Puget Sound have salmon, steelhead and cutthroat trout spawning runs. Oncorhynchus rastrosus (synonym "Smilodonichthys rastrosus"") "also known as the sabertooth salmon, is an extinct species of salmon that lived along the Pacific coast of North America, first appearing in the late Miocene near California, then dying out some time during the Pleistocene.  Adults grew to be 2.7 m (9 ft) in length and are believed to have been anadromous like their living relatives.  Besides being the largest member of the Pacific salmon genus "Oncorhynchus", members of this species had a pair of small "fangs" protruding from the tip of the snout, thus explaining the common name and synonym.  Beyond their fangs, adults of "O. rastrosus" had larger gill rakers compared to their smaller, modern relatives, leading scientists to suggest that the adults ate plankton. AquAdvantage salmon is a genetically modified (GM) Atlantic salmon developed by AquaBounty Technologies.  A growth hormone-regulating gene from a Pacific Chinook salmon, with a promoter from an ocean pout, was added to the Atlantic salmon's 40,000 genes.  This gene enables it to grow year-round instead of only during spring and summer.  The purpose of the modifications is to increase the speed at which the fish grows without affecting its ultimate size or other qualities.  The fish grows to market size in 16 to 18 months rather than three years.  The latter figure refers to varieties whose growth rate has already been improved by 2:1 as a result of traditional selective breeding.  Conventional salmon growers publicly challenged the claimed growth rates. Sockeye salmon ("Oncorhynchus nerka"), also called red salmon, kokanee salmon, or blueback salmon, is an anadromous species of salmon found in the Northern Pacific Ocean and rivers discharging into it.  This species is a Pacific salmon that is primarily red in hue during spawning.  They can grow up to 84 cm in length and weigh 2.3 to(-) .  Juveniles remain in freshwater until they are ready to migrate to the ocean, over distances of up to 1600 km .  Their diet consists primarily of zooplankton.  Sockeye salmon are semelparous, dying after they spawn.  Some populations, referred to as kokanee, do not migrate to the ocean and live their entire lives in freshwater. The Chinook salmon ("Oncorhynchus tshawytscha") is the largest species in the Pacific salmon genus "Oncorhynchus".  The common name refers to the Chinookan peoples.  Other vernacular names for the species include king salmon, Quinnat salmon, spring salmon, and Tyee salmon.  The scientific species name is based on the Russian common name "chavycha" (чавыча). The Pacific Salmon Commission is a regulatory body run jointly by the Canadian and United States governments. Its mandate is to protect stocks of the five species of Pacific salmon.  Its precursor was the International Pacific Salmon Fisheries Commission, which operated from 1937 to 1985.  The PSC enforces the Pacific Salmon Treaty, ratified by Canada and the U.S. in 1985. The coho salmon ("Oncorhynchus kisutch;" Karuk: achvuun) is a species of anadromous fish in the salmon family, one of the several species of Pacific salmon.  Coho salmon are also known as silver salmon or "silvers".  The scientific species name is based on the Russian common name "kizhuch" (кижуч).
Answer: Oncorhynchus