On hybrids between Triticum spelta and two dwarf wheat plants with 40 somatic chromosomes
نویسندگان
چکیده
منابع مشابه
Characterization of a Subgenomic DNA Isolated from Triticum aestivum Plants Infected with Wheat Dwarf Virus
A subgenomic DNA has been isolated from wheat tissue infected with a Swedish isolate of wheat dwarf virus and cloned. Restriction endonuclease analysis and nucleotide sequence determination indicated that the subgenomic DNA (1472 nucleotides) was derived from the genomic DNA (2749 nucleotides) by two separate deletions. The subgenomic DNA had lost open reading frames (ORFs) encoding the virus c...
متن کاملChromosomal distribution of pTa-535, pTa-86, pTa-713, 35S rDNA repetitive sequences in interspecific hexaploid hybrids of common wheat (Triticum aestivum L.) and spelt (Triticum spelta L.)
Fluorescent in situ hybridization (FISH) relies on fluorescent-labeled probes to detect specific DNA sequences in the genome, and it is widely used in cytogenetic analyses. The aim of this study was to determine the karyotype of T. aestivum and T. spelta hybrids and their parental components (three common wheat cultivars and five spelt breeding lines), to identify chromosomal aberrations in the...
متن کاملPhotosynthetic capacity and dry mass partitioning in dwarf and semi-dwarf wheat (Triticum aestivum L.).
Efficient use of space and high yields are critical for long-term food production aboard the International Space Station. The selection of a full dwarf wheat (less than 30 cm tall) with high photosynthetic and yield potential is a necessary prerequisite for growing wheat in the controlled, volume-limited environments available aboard long-term spaceflight missions. This study evaluated the phot...
متن کاملCytological characteristics of F2 hybrids between Triticum aestivum L. and T. durum Desf. with reference to wheat breeding.
Cytological and agronomic characteristics of a F2 population from Triticum aestivum L. x T. durum Desf. hybrids were analyzed plant by plant. Means of morphologic traits in the F2 population were similar to those of the low-value parent. On average, F2 hybrids had 36.54 chromosomes per plant, indicating that each gamete lost 2.73 chromosomes at meiosis of the F1 generation. More than half of pl...
متن کاملSynthesis and characterization of advanced durum wheat hybrids and addition lines with thinopyrum chromosomes.
Durum wheat (Triticum turgidum L., 2n = 4x = 28; AABB genomes) is a natural hybrid-an allotetraploid between 2 wild species, Triticum urartu Tumanian (AA genome) and Aegilops speltoides Tausch (BB genome). Even at the allotetraploid level, durum wheat can tolerate chromosomal imbalance, for example, addition of alien chromosome 1E of diploid wheatgrass, Lophopyrum elongatum. Therefore, one way ...
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ژورنال
عنوان ژورنال: Shokubutsugaku Zasshi
سال: 1928
ISSN: 0006-808X
DOI: 10.15281/jplantres1887.42.154