Snaggleroots
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Double Fertilization
Fertilization is the union of sperm (from the pollen) and egg (in the ovule). In angiosperms, the sperm nuclei will enter the embryo sac. One will fertilize the egg and the other will fertilize the two polar nuclei; this is called double fertilization and is only found in Angiosperms.The fertilized egg (2n) will develop into the immature seed plant, while the (3n) central cell will develop into the endosperm or food storage area of the seed. The result is a seed composed of the seed coat, the nutritive endosperm (cotyledon(s), and the embryo.
So when the 2n doesn't consume the fused 3n you'll have two seeds per bract.One of those will be more vigorous and able to evolve into an environment more easily the 3n.
If you pair 3n with another 3n you can substain heterosis into any scenario.You'll lose the advantageous chromosomal activity through diploidization in later generations if pairing 3n and 2n.Continued backcrosses to either 3n will maintain advantageous chromsomes,or sustained heterosis.
Fertilization is the union of sperm (from the pollen) and egg (in the ovule). In angiosperms, the sperm nuclei will enter the embryo sac. One will fertilize the egg and the other will fertilize the two polar nuclei; this is called double fertilization and is only found in Angiosperms.The fertilized egg (2n) will develop into the immature seed plant, while the (3n) central cell will develop into the endosperm or food storage area of the seed. The result is a seed composed of the seed coat, the nutritive endosperm (cotyledon(s), and the embryo.
So when the 2n doesn't consume the fused 3n you'll have two seeds per bract.One of those will be more vigorous and able to evolve into an environment more easily the 3n.
If you pair 3n with another 3n you can substain heterosis into any scenario.You'll lose the advantageous chromosomal activity through diploidization in later generations if pairing 3n and 2n.Continued backcrosses to either 3n will maintain advantageous chromsomes,or sustained heterosis.