Chapt 5 Polyploid

Post on 11-Nov-2015

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Transcript of Chapt 5 Polyploid

Plant Breeding Chapter 5

Plant Breeding Chapter 5Haploid- gametic chromosome number = nDiploid - somatic chromosome number = 2n

PolyploidyTriploid3x (sets of chromosomes)Tetraploid4xHexaploid6xAutopolyploidy - sameAllopolyploidy - differentAllopolploidsAvena species 7, 14, 21 = nTriticum species 7, 14, 21 = nFestuca 7, 14, 21 = n

Autopolploids = potatoes, alfalfa