Chapt 5 Polyploid
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Plant Breeding Chapter 5 • Haploid - gametic chromosome number = n • Diploid - somatic chromosome number = 2n • Polyploidy – Triploid 3x (sets of chromosomes) – Tetraploid 4x – Hexaploid 6x Autopolyploidy - same Allopolyploidy - different
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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