Re: HYB:recessives

Hi Betty,
It is possible for two different genes to be "linked". Usually, 2 separate genes (and thus two separate traits) will sort independently in a plant's progeny.
However, if two genes are on the same chromosome *and* really close together on that chromosome, then they will not sort independently. There will be a preference for the two genes to enter the child generation together. How strong this preference is depends on how close they are in the chromosome. The closer, the more likely they'll be inherited as a pair.
That said, even if two genes are immediately adjacent, there's always a chance that they'll separate (due to what's called "crossing-over"). If you want these two genes to not inherit as a pair in your breeding program, you'll just have to make more crosses (and grow more seedlings) than usual... 

-Matt
Melrose, MA
Zone 6

On Nov 7, 2009, at 7:11 PM, autmirislvr@aol.com wrote:


Talking about recessive . . .
Something came up in conversation (off list) the other day and I'd like to 
pose a question to the list.
Are recessives sometimes coupled together? Or linked? If a plant has a characteristic that is recessive, will it also have other recessive traits? 
Automatically?



Thanks,

Betty Wilkerson
Bridge In Time Irises
KY Zone 6

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