lundi 16 octobre 2017

Wikipedia Trails: From Strawberry to Polyploid

I read about the origin of strawberries in the Cherokee stories and was curious as to where they were first grown.

Strawberry: Strawberry, at least for Wikipedia, refers to the garden strawberry that is cultivated and sold around the world. It is a hybrid of two types of strawberries, one from Chile and one from the United States, which were first bred together in Brittany, France. Strawberries are a good source of vitamin C and manganese and have positive health effects.
Chocolate-Covered Strawberries. Web Source: Wikipedia.

Fragraria: This is the genus to which belong wild strawberries. There are over 20 species that are found throughout the world. They vary based on how many copies of their basic chromosomes they have. Interestingly, strawberries are not true berries, and their "seeds" are actually something else called achenes.

Virginia Strawberry: This strawberry grows throughout the United States and Canada, and is one of the strawberry species that was used to hybridize the garden strawberry. This is presumably the strawberry mentioned in the story. It multiplies which new plants grow up from the rhizomes, which makes it rather invasive.

Polyploid: While most Eukaryotic organisms (ones that have a nucleus) have two copies of each chromosome, some, particularly plants, can have several. The Virginia Strawberry has eight copies of each chromosome.

1 commentaire:

  1. This was a very interesting wiki trail! I had no idea where strawberries had their origin. That is crazy that virginia strawberries can have 8 copies of chromosomes. I had heard before that strawberries are not actually berries, but I forgot that until now.

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