+ Translate

Evidence on the saltatory origin of the g genome in wheat the description of a triticum timopheevi like mutant

, : Evidence on the saltatory origin of the g genome in wheat the description of a triticum timopheevi like mutant. Annals of Botany (London) 51(5): 561-570

A spontaneously occurring somatic mutant of T. turgidum dicoccoides showed close morphological resemblance to T. timopheevi (AAGG). The hybrid between the mutant and the T. turgidum dicoccoides mother plant was completely sterile, with very low pollen fertility (0.33%). It exhibited a reasonably high frequency of trivalents and quadrivalents at 1st metaphase of meiosis, indicating that the mutation involved substantial levels of chromosome rearrangement. The hybrid between the mutant and T. timopheevi had reasonably high fertility (53.5%) and high pollen fertility (86.6%) and almost regular bivalent formation at first metaphase of meiosis. T. timopheevi could have arisen in consequence of somatic macromutation from T. turgidum dicoccoides giving rise to spontaneous speciation. The G genome of T. timopheevi is possibly monophyletic in origin, arising from rearrangement of chromosomes of the B genome of tetraploid wheat.

(PDF 0-2 workdays service)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 005411870

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Ginsburg H.; Ginzburg B.Z., 1974: Radial water and solute flows in roots of zea mays electrical potential profiles across the root. Journal of Experimental Botany 25(84): 28-35

Notten, Mjm; Oosthoek, Ajp; Rozema, J.; Aerts, R., 2005: Heavy metal concentrations in a soil-plant-snail food chain along a terrestrial soil pollution gradient. We investigated concentrations of Zn, Cu, Cd and Pb in the compartments of a soil-plant (Urtica dioica)-snail (Cepaea nemoralis) food chain in four polluted locations in the Biesbosch floodplains, the Netherlands, and two reference locations. Tota...

Sihag, R. K.; Wang, L. W.; Cataldo, A. M.; Hamlin, M.; Cohen, C. M.; Nixon, R. A., 1994: Evidence for the association of protein 4.1 immunoreactive forms with neurofibrillary tangles in Alzheimer's disease brains. The formation of neurofibrillary tangles (NFTs) and paired-helical filaments (PHFs) in Alzheimer's disease (AD) reflects a major disorganization of the cytoskeleton. The role of the neuronal membrane skeleton in the development of these abnor...

Cahill A.L.; Perlman R.L., 1984: Electrical stimulation increases the phosphorylation of tyrosine hydroxylase in the superior cervical ganglion. Society for Neuroscience Abstracts 10(2): 1099

Kim, C. H., 1977: On the polymorphism in a polydomous red wood ant, Formica rufa truncicola var. yessoensis Forel in Korea. In the studies on polycalic colonies of Formica truncicola var. yessensis Forel (rufa truncicola var. yessensis) in Korea that are described in this paper, the relation of task performance to body size, the variation in male wing venation and sex...

Rivosecchi, L., 1963: Un nuovo Simutide Prosimulium aculeatum n.sp. (Diptera, Nematocera, Simuliidae) trovato in Sicilia. Parassitologia, 5: 119-130

Ivanovics, G., 1962: A second bacteriocin-like principle of Bacillus megaterium I The characteristics of the bactericidal principle. Bacillus megaterium (strain 337) and its asporogenic mutant released an antibacterial thermolabile principle which killed phage-sensitive strains of B. megaterium. The principle does not multiply but adsorbs on cells. This substance - designated a...

O' Rourke, D., 2000: Global apple trade in the year 2000. This is an excerpt from a speech given at the INTERPOMA 2000. It predicts that global apple production will increase overproportionally to the demand, while the cultivated area will remain constant, except for an expected increase in China. Produc...

Schaetzl Randall J.; Forman Steve L., 2003: A possible disjunct of Peoria Silt loess in northern lower Michigan. Loess is rare in Michigan, and where present it is thin and usually incorporated into the sandy or clayey soil below. Most of the Peoria Silt, a widespread loess in the midwestern USA, was deposited before northern Michigan became ice-free (about...

Schwartz, J. A.; Mizukami, H.; Skafar, D. F., 1993: A metal-linked gapped zipper model is proposed for the hsp90-glucocorticoid receptor interaction. In the presence of certain metals, regions of the hormone binding domain of the glucocorticoid receptor (GR) are capable of binding the 90 kDa heat shock protein (hsp90). Using secondary structure prediction methods in correlation with the experim...