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  • 1
    Electronic Resource
    Electronic Resource
    Cytogenetic and genomic relationships ofThinopyrum elongatum with twoPsathyrostachys species and withLeymus secalinus (Poaceae) (1995)
    Springer
    Plant systematics and evolution 197 (1995), S. 225-231 
    Details
    ISSN: 1615-6110
    Keywords: Poaceae ; Leymus ; Thinopyrum ; Psathyrostachys ; Intergeneric hybrids ; chromosome pairing ; genome analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Intergeneric hybridizations were made betweenT. elongatum, and twoPsathyrostachys and fiveLeymus species. The seed set obtained onT. elongatum ×Leymus hybrids ranged from 5.65% to 20.00%, depending onLeymus species. The seed set obtained onT. elongatum ×Psathyrostachys hybrids ranged from 16.07% to 19.70%. Meiotic pairing at metaphase-I in JN diploid hybrids ofT. elongatum ×Psathyrostachys species revealed a very low level homology between the basic J and N genomes, and further demonstrated that the two genomes are quite diverged. Chromosome pairing in theT. elongatum ×Leymus secalinus hybrid averaged 15.19 univalents + 2.62 rod bivalents + 0.26 ring bivalents + 0.02 trivalents, suggesting that the partial Je chromosomes ofT. elongatum has homology withLeymus secalinus genomes.L. secalinus might have 3–4 chromosomes originating from Je genome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984641
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Production and cytogenetic analysis of intergeneric hybrids betweenElymus anthosachnoides andPsathyrostachys huashanica (Poaceae: Triticeae) (1996)
    Springer
    Plant systematics and evolution 202 (1996), S. 265-269 
    Details
    ISSN: 1615-6110
    Keywords: Poaceae ; Triticeae ; Elymus anthosachnoides ; Psathyrostachys huashanica ; Intergeneric hybrids ; meiosis ; chromosome pairing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00983387
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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