Salmoniformes

This event, known as tetraploidization, left all species in the family Salmonidae with four copies of each chromosome (tetraploid) instead of the typical two (diploid), or about twice the amount of DNA as species from other families in the order Salmoniformes.

Trout and Salmon of North America Robert J. Behnke 2002

Today, the order Salmoniformes includes the families Salmonidae (whitefishes, graylings, trout, salmon, and char), Osmeridae (smelts), and Plecoglossidae (ayu) from the Northern Hemisphere, as well as several families from the Southern Hemisphere.

Trout and Salmon of North America Robert J. Behnke 2002

This event, known as tetraploidization, left all species in the family Salmonidae with four copies of each chromosome (tetraploid) instead of the typical two (diploid), or about twice the amount of DNA as species from other families in the order Salmoniformes.

Trout and Salmon of North America Robert J. Behnke 2002

Today, the order Salmoniformes includes the families Salmonidae (whitefishes, graylings, trout, salmon, and char), Osmeridae (smelts), and Plecoglossidae (ayu) from the Northern Hemisphere, as well as several families from the Southern Hemisphere.

Trout and Salmon of North America Robert J. Behnke 2002

This event, known as tetraploidization, left all species in the family Salmonidae with four copies of each chromosome (tetraploid) instead of the typical two (diploid), or about twice the amount of DNA as species from other families in the order Salmoniformes.

Trout and Salmon of North America Robert J. Behnke 2002

Today, the order Salmoniformes includes the families Salmonidae (whitefishes, graylings, trout, salmon, and char), Osmeridae (smelts), and Plecoglossidae (ayu) from the Northern Hemisphere, as well as several families from the Southern Hemisphere.

Trout and Salmon of North America Robert J. Behnke 2002

This event, known as tetraploidization, left all species in the family Salmonidae with four copies of each chromosome (tetraploid) instead of the typical two (diploid), or about twice the amount of DNA as species from other families in the order Salmoniformes.

Trout and Salmon of North America Robert J. Behnke 2002

Today, the order Salmoniformes includes the families Salmonidae (whitefishes, graylings, trout, salmon, and char), Osmeridae (smelts), and Plecoglossidae (ayu) from the Northern Hemisphere, as well as several families from the Southern Hemisphere.

Trout and Salmon of North America Robert J. Behnke 2002

It is the model species of the entire order Salmoniformes.

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