jayb
Currant
Posts: 34
Favourite Tomato: Ripe ones!
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Post by jayb on Sept 7, 2014 13:02:29 GMT 1
- or so I thought! I'm growing two Ananas Noir x Brandywine F1 plants. But the plants have different coloured fruit to each other, neither is as the mother plant, I'm not exactly sure what's happening with this cross? Attachments:
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maf
Currant
Posts: 22
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Post by maf on Sept 7, 2014 21:57:40 GMT 1
I would think that one or other of the parents was not true to type to give this kind of variation. If one of the parents is segregating so will the F1 be. Did you notice anything strange about either of the parent plants?
Either that or a mixture of two types of pollen was used and some seeds were fertilized by a different father line.
Very interesting all the same.
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jayb
Currant
Posts: 34
Favourite Tomato: Ripe ones!
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Post by jayb on Sept 8, 2014 7:32:57 GMT 1
Thanks Maf, I did wonder about Ananas Noir as I received it in a swap, but although it wasn't that productive for me, it seemed to be true to type. Brandywine this time was from a commercial source, so likely to be true. Mixed pollen-Yes perhaps I wasn't as careful as I could have been pollinating or maybe a bee cross? I would have been growing the Bi colours grouped together. Would Ananas Noir x a yellow red Bi colour give this colouring in an F1?
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maf
Currant
Posts: 22
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Post by maf on Sept 8, 2014 16:30:13 GMT 1
I would have been growing the Bi colours grouped together. Would Ananas Noir x a yellow red Bi colour give this colouring in an F1? Yes it sure would. Ananas Noire is an example of what a bicolour looks like when the gf trait for chlorophyl retention is added to the mix. The other one looks how I would have expected an F1 cross to Brandywine to look.
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jayb
Currant
Posts: 34
Favourite Tomato: Ripe ones!
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Post by jayb on Sept 9, 2014 8:20:07 GMT 1
Yes it sure would. Ananas Noire is an example of what a bicolour looks like when the gf trait for chlorophyl retention is added to the mix. Excellent, two for the price of one, I'm glad I grew the two plants now!
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jayb
Currant
Posts: 34
Favourite Tomato: Ripe ones!
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Post by jayb on Sept 9, 2014 8:35:41 GMT 1
The other one looks how I would have expected an F1 cross to Brandywine to look. Good to know, I'm looking forward to growing some of the F2's, ages away 'til next season though. I think Bi-colour is recessive, so the Ananas Noir x Bi? will always be bi-coloured?
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maf
Currant
Posts: 22
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Post by maf on Sept 9, 2014 18:04:43 GMT 1
I think Bi-colour is recessive, so the Ananas Noir x Bi? will always be bi-coloured? Assuming that is what it is, then it should be, and around a quarter will be bi-coloured green/dark like Ananas Noire. It might be worth checking out the epidermis colours on the F1's too. Ananas Noire and Brandywine should both have transparent skin, so that F1 should too (It looks pink in the photo to me, albeit a little darker due to the recessive gf gene). The other one would show a yellow epi if the bicolour it was crossed to was yellow skinned.
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jayb
Currant
Posts: 34
Favourite Tomato: Ripe ones!
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Post by jayb on Sept 10, 2014 9:56:10 GMT 1
Yes assumption can be a risky game! I really like Bi-coloured greens, so good to look at and I think out of the ones I've tasted so far - pretty yum!
You're spot on with the epidermis colour, indeed a pink and the bi-colour was yellow skinned.
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