Results 191 to 200 of about 2,373 (206)
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Preferential occurrence of wheat-rye meiotic pairing between chromosomes of homoeologous group 1
Theoretical and Applied Genetics, 1982Wheat-rye homoeologous pairing in both ABRR and (0-7)A(0-7)BRR plants takes place preferentially between homoeologous chromosomes of group 1. This suggests either a much greater affinity between wheat and rye chromosomes for this group or more efficient pairing initiation because of common nucleolar organizer activities.
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Production of wheat-barley recombinant chromosomes through induced homoeologous pairing
Theoretical and Applied Genetics, 1992Sears' phlb mutant was used successfully for the first time to induce pairing and recombination between specific barley chromosomes and their wheat homoeologues. Pairing was induced in specially constructed genetic stocks having 19 pairs of wheat chromosomes and triply monosomic for either barley chromosome arm 6HL or 3HL, a related wheat chromosome ...
A K, Islam, K W, Shepherd
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Nature New Biology, 1972
HOMOEOLOGOUS chromosomes of the three genomes of bread wheat (Triticum aestivum 2n=6x=42) are normally prevented from pairing at meiosis by the activity of an allele at the Ph locus on chromosome 5BL (refs. 1–4). This activity is responsible for the regular bivalent-forming meiotic behaviour and for the stable disomic inheritance of T. aestivum.
G A, Dover, R, Riley
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HOMOEOLOGOUS chromosomes of the three genomes of bread wheat (Triticum aestivum 2n=6x=42) are normally prevented from pairing at meiosis by the activity of an allele at the Ph locus on chromosome 5BL (refs. 1–4). This activity is responsible for the regular bivalent-forming meiotic behaviour and for the stable disomic inheritance of T. aestivum.
G A, Dover, R, Riley
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GENETIC VARIABILITY INAEGILOPS SPELTOIDESAFFECTING HOMOEOLOGOUS PAIRING IN WHEAT
Canadian Journal of Genetics and Cytology, 1972Three Chinese Spring ditelocentric lines and four Agropyron telocentric addition lines were crossed with a single population of Aegilops speltoides. Chromosome pairing was studied in the hybrid plants. The mean chiasma frequencies per cell in different hybrid plants indicate the existence of three different genotypes in the population of Ae. speltoides
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Theoretical and Applied Genetics, 1997
Genomic in situ hybridization (GISH) was used to examine genome interactions in two allohexa ploid (2n=6x=72) Lycopersicon esculentum (+) L. peruvianum somatic hybrids and their seed progenies originated from subsequent backcrosses to L. esculentum.
A. S. Parokonny +5 more
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Genomic in situ hybridization (GISH) was used to examine genome interactions in two allohexa ploid (2n=6x=72) Lycopersicon esculentum (+) L. peruvianum somatic hybrids and their seed progenies originated from subsequent backcrosses to L. esculentum.
A. S. Parokonny +5 more
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Canadian Journal of Genetics and Cytology, 1986
While an extra dose of chromosome 2A of common wheat, previously reported to carry a pairing promoter on its short arm, did not increase pairing between homoeologous chromosomes in F1 hybrids between common wheat cv. Chinese Spring (CS) and Aegilops variabilis, two doses of chromosome 2D or 2B caused a significant increase in homoeologous pairing ...
C. Ceoloni, I. Strauss, M. Feldman
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While an extra dose of chromosome 2A of common wheat, previously reported to carry a pairing promoter on its short arm, did not increase pairing between homoeologous chromosomes in F1 hybrids between common wheat cv. Chinese Spring (CS) and Aegilops variabilis, two doses of chromosome 2D or 2B caused a significant increase in homoeologous pairing ...
C. Ceoloni, I. Strauss, M. Feldman
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Homoeologous pairing in hybrids ofTriticum turgidum durum cvs. xT. aestivum L. cv. Chinese Spring
Euphytica, 1989The meiotic behavior of 22Triticum turgidum durum × Triticum aestivum L. cv. Chinese Spring (2n=35 chromosomes, AABBD genomes) F1 hybrids has been analyzed and compared with that of the same cultivars hybridized withT. turgidum durum cv. Senatore Capelli.
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INDUCTION OF HOMOEOLOGOUS PAIRING IN WHEAT BY GENES OF RYE SUPPRESSING CHROMOSOME 5B EFFECT
Canadian Journal of Genetics and Cytology, 1976To test the effect of single rye chromosomes on the pairing of homoeologous wheat chromosomes, the seven wheat-rye addition lines of "Chinese Spring" and "Imperial" were crossed with Secale cereale L. and S. montanum L. In haploid triticale with 28 chromosomes (ABD R) no homoeologous pairing was induced.
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American Journal of Botany, 1975
The gametophyte of Trichomanes pinnatum is filamentous save for its club‐shaped archegoniophores. Gametangial structure is consistent with that of related species. The apogamous embryo originates from the archegonial jacket and contiguous tissue such that there is no external indication of apogamy.
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The gametophyte of Trichomanes pinnatum is filamentous save for its club‐shaped archegoniophores. Gametangial structure is consistent with that of related species. The apogamous embryo originates from the archegonial jacket and contiguous tissue such that there is no external indication of apogamy.
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The effect of B chromosomes on homoeologous pairing in species hybrids
Chromosoma, 1976I. B. Taylor, G. M. Evans
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