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Genetika 2011, vol. 43, br. 1, str. 41-49
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Genetička divergentnost Amaranthus hypochondriacus L.
Division of Genetics, Plant breeding & Agrotechnology, National Botanical Research Institute, Lucknow, India
e-adresa: rmp12@rediffmail.com
SažetakObim i magnitude genetičke divergentnosti 14 osobina među 98 genotipova zrna amarantusa (Amaranthus hypochondriacus L.) je utvrđen za potrebe identifikacije više divergentnih roditelja kod koji se očekuje maksimalna varijabilnost. Bazirano na statističkoj genetičkoj divergentnosti D2 genotipovi su grupisani u 18 klastera u kojima klaster I sadrži maksimalni broj genotipova (42), klaster II (11), klaster III (7), klaster IV I V ( 5 u svakom slučaju) i klaster VI koji je imao 4 genotipa. Klasteri VII, VIII, IX i X su imali po 3 genotipa, klasteri XI, XII, XIII, XIV (po dva genotipa i klasteri XV, XVI, XVII I XVIII (po jedan genotip). Izgled klastera potvrđuje da nije bilo zavisnosti između genetičke divergentnosti i eko-geografskih regiona. Vrednosti unutar klastera variraju od 0.00 do 141.86 a klaster IX je najrazličitija grupa.. međuklasterske vrednosti variraju od 133.08 do 1214.59. Maksimalna divergentnost je utvrđena između klastera VIII i XI, slede klasteri XI i XV (982.16) i klasteri II i XI (938.89). Dobijeni klasteri divergentnosti mogu da se koriste u programima oplemenjivanja radi generisanja transgresivnih segreganata u populacijama u cilju dobijanja visokoprinosnih varieteta amarantusa.
Ključne reči
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