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crossing direction

At a crossing or. breeding from varieties the parents are usually in the form of "New variety = mother variety x fathers" specified (see an extensive listing under the keyword new breed ). For example " Müller-Thurgau = Riesling (Mother) x Madeleine Royale (Father)". This is also referred to as crossing direction. This is important because much more cell material is transmitted from the parent to the embryos in the seeds, namely, nucleus, plastids and mitochondria. By contrast, only the cell nucleus is passed on from the father's place (see also detailed under blossom ).

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