EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The molecular basis of genetic diversity among cytoplasms of triticum and aegilops spp 2. on the origin of poly ploid wheat cytoplasms as suggested by chloroplast dna restriction fragment patterns






Genetics 104(1): 155-172

The molecular basis of genetic diversity among cytoplasms of triticum and aegilops spp 2. on the origin of poly ploid wheat cytoplasms as suggested by chloroplast dna restriction fragment patterns

In attempts to identify the phylogenetic donors of cytoplasm to Emmer-Dinkel and Timopheevi groups of wheat (Triticum), and the A. kotschyi-A. variabilis complex, the restriction fragment patterns of chloroplast DNA of representative species were compared with those of their putative diploid ancestors. The following 7 restriction enzymes were used: BamHI, EcoRI, HindIII, KpnI, PstI, SmaI and XhoI. The restriction fragment patterns of an Emmer and a Dinkel (common) wheat were identical with those of A. longissima, and different from those of A. aucheri, A. bicornis, A. searsii, A. sharonensis, A. speltoides and T. urartu by 4-12 fragments. The restriction fragment patterns of a Timopheevi wheat were identical with those of A. aucheri, and different from those of all other diploids by 4-9 fragments. The restriction fragment patterns of A. variabilis were identical to those of A. bicornis and A. searsii, and different from those of all other species. A. longissima, A. aucheri and A. bicornis (or A. searsii) were apparently the cytoplasm donors to the Emmer-Dinkel and the Timopheevi groups, and the A. kotschyi-A. variabilis complex, respectively. A diphyletic origin of Emmer and Timopheevi groups is supported by the present results.


Accession: 006719823



Related references

Tsunewaki, K.; Ogihara, Y., 1983: The molecular basis of genetic diversity among cytoplasms of Triticum and Aegilops species. On the origin of polyploid wheat cytoplasms as suggested by chloroplast DNA restriction fragment patterns. Genetics 104: 5-71

Tsunewaki, K.; Ogihara, Y., 1983: The Molecular Basis of Genetic Diversity among Cytoplasms of TRITICUM and AEGILOPS Species. II. on the Origin of Polyploid Wheat Cytoplasms as Suggested by Chloroplast DNA Restriction Fragment Patterns. From comparisons of restriction fragment patterns (seven enzymes used) of chloroplast DNA in T. aestivum and 11 related species, it is suggested that Ae. longissima, Ae. aucheri [Ae. speltoides] and Ae. bicornis (or Ae. searsii) were the cytoplasm...

Murai, K.; Tsunewaki, K., 1986: Molecular basis of genetic diversity among cytoplasms of triticum and aegilops species iv. chloroplast dna variation in aegilops triuncialis. Restriction endonuclease analysis of chloroplast DNA of Ae. triuncialis was carried out. Thirteen accessions had the type 2a chloroplast genome derived from Ae. caudata, eight possessed type 3 chloroplast genome of Ae. umbellulata, and the remaini...

Terachi, T.; Tsunewaki, K., 1986: The molecular basis of genetic diversity among cytoplasms of Triticum and Aegilops : 5. Mitochondrial genome diversity among Aegilops species having identical chloroplast genomes. Restriction fragment patterns of mtDNA isolated from the cytoplasm of three groups of Aegilops species (or accessions) which are known to carry the identical chloroplast genome but distinctly different cytoplasmic genomes (plasmons) have been anal...

Terachi, T.; Ogihara, Y.; Tsunewaki, K., 1984: The molecular basis of genetic diversity among cytoplasms of Triticum and Aegilops. Chloroplast genomes of the M and modified M genome-carrying species. Genetics 108: 1-95

Terachi, T.; Ogihara, Y.; Tsunewaki, K., 1984: The Molecular Basis of Genetic Diversity among Cytoplasms of Triticum and Aegilops. III. Chloroplast Genomes of the M and Modified M Genome-Carrying Species. The restriction fragment patterns of chloroplast DNA (ctDNA) from 12 Aegilops species, together with those of common wheat, A. umbellulata and A. squarrosa as standards, were analysed using 8 restriction endonucleases. The sources of the ctDNA wer...

Terachi, T.; Ogihara, Y.; Tsunewaki, K., 1990: The molecular basis of genetic diversity among cytoplasms of triticum and aegilops 7. restriction endonuclease analysis of mitochondrial dna from polyploid wheats and their ancestral species. Many related species and strains of common wheat were compared by matching differences among their mitochondrial genomes with their "parent" nuclear genomes. We examined three species of Aegilops, section Sitopsis (Ae. bicornis, Ae. shar...

Terachi, T.; Ogihara, Y.; Tsunewaki, K., 1987: The molecular basis of genetic diversity among cytoplasms of triticum and aegilops vi. complete nucleotide sequences of the rbc l genes encoding h and l type rubisco large subunits in common wheat and aegilops crassa 4x. The complete nucleotide sequence of the structural gene for each H- and L-type large subunit (LS) of Rubisco (rbcL), which differ in isoelectric point and are related with the differential in vitro CO2 fixation efficiency of this enzyme, was deter...

Terachi, T.; Ogihara, Y.; Tsunewaki, K., 1990: The molecular basis of genetic diversity among cytoplasms of Triticum and Aegilops : 7. Restriction endonuclease analysis of mitochondrial DNAs from polyploid wheats and their ancestral species. Many related species and strains of common wheat were compared by matching differences among their mitochondrial genomes with their "parent" nuclear genomes. We examined three species of Aegilops, section Sitopsis (Ae. bicornis, Ae. shar...

Terachi, T.; Ogihara, Y.; Tsunewaki, K., 1990: The molecular basis of genetic diversity among cytoplasms of Triticum and Aegilops. VII. Restriction endonuclease analysis of mitochondrial DNAs from polyploid wheats and their ancestral species. Three species each of Aegilops, section Sitopsis (A. bicornis, A. sharonensis and A. speltoides), emmer wheat (T. dicoccoides, T. dicoccum and T. durum), common wheat (T. spelta, T. aestivum and T. compactum) and timopheevii wheat (T. araraticum,...