Production and cytogenetic analysis of intergeneric hybrids betweenElymus anthosachnoides andPsathyrostachys huashanica (Poaceae: Triticeae) |
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| Authors: | Wan-Ji Li Ji-Hong Liu Yi-Ping Li Fang Liu |
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| Affiliation: | (1) Triticeae Research Institute, Sichuan Agricultural University, 611830 Dujiangyan City, Sichuan, P.R. China;(2) Department of Plant Breeding Research, Uppsala Genetic Center, Swedish University of Agricultural Sciences, Box 7003, S-750 07 Uppsala, Sweden |
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| Abstract: | Intergeneric hybridization betweenElymus anthosachnoides (2n = 28,SSYY) andPsathyrostachys huashanica (2n = 14,NN) was performed. Three hybrid plants, obtained via embryo rescue, were intermediate between the parents in morphology and developed vigorously, but were completely sterile. The mean chromosome configuration was 19.48 I + 0.76 II per cell in the hybrids at meiotic metaphase I. This result indicates thatE. anthosachnoides andP. huashanica are distantly related and that there is little or no homoeology betweenN (P. huashanica) andS orY (E. anthosachnoides) genomes. |
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| Keywords: | Poaceae Triticeae Elymus anthosachnoides Psathyrostachys huashanica Intergeneric hybrids meiosis chromosome pairing |
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