Quote:
Originally Posted by DoctorSteve
So if I am understanding this right the diploids are fertile males (not forgetting they are hermaphroditic) and the triploid and tetraploid are not? Or is there another reason they used the diploids?
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Diploids tend to be male fertile, but this is not a rule. I'm not sure what you are thinking hermaphroditic is in this sense, but for bananas it would mean the basal flowers are hermaphroditic instead of female, I don't think this is what you are referring to. Diploids, triploids or tetraploids can be both male and female fertile, or neither, or some combination of both, usually with some degree of fertility. There is really no rule, it varies greatly depending on the variety.
Quote:
Originally Posted by DoctorSteve
After finding suitable diploids they breed them with triploids. After diploid triploid breading they looked for tetraploid offspring that came from the diploid triploid cross?
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Yes, in this breeding scheme. But there are other schemes used which have different combination models.
Quote:
Originally Posted by DoctorSteve
Is it possible to bread diploids with tetraploids?
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Yes, generally, but it all depends on the exact parents you are using if it will succeed or not.