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Breeding and Cytogenetic Study of Triticum aestivum-Psath yrostachys huashanica Alien Addition Lines

Chen Shuyang;Hou Wensheng;Zhang Anjing;Fu Jie;YangQunhui(Northwest Institute of Botany Yangling Shaanxi 712100)  
Heptaploids were obtained by back crossing(common wheat×P. huashanica) F1 with common wheat. The disomic addition plants were produced by crossing the heptaploids with common wheat followed by selfing BC1F1 hybrids and selecting 2n=43 plants. If the heptaploid was used as male, the frequency of monosomic addition (24.2%) was higher than that if the heptaploid was used as female (12.28%). The frequency of disomic addition plants derived from selfing monosomic addition plants was 7.19% .The cytological stabilities among addition lines were different and increased with generations.
【CateGory Index】: S512.103
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