EurekaMag.com logo
+ Translate

The 'A' genome donor of Eleusine coracana (L.) Gaertn. (Gramineae)


, : The 'A' genome donor of Eleusine coracana (L.) Gaertn. (Gramineae). Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 84(5-6): 747-754

In an attempt to discover 'A' and 'B' genome donor(s) to finger millet, Eleusine coracana, or its progenitor species, E. africana (both allotetraploid 2n = 4x = 36), five diploid species, E. indica, E. floccifolia, E. multiflora, E. tristachya and E. intermedia, were crossed to finger millet and its progenitor taxon. Crosses were successful only with E. coracana. Three combinations of triploid hybrids E. coracana X E. indica, E. coracana X E. floccifolia, and E. coracana X E. multiflora were obtained and analysed. Meiotic behaviour was perfectly normal in parental species. The regular number of 18 bivalents in E. coracana, 9 bivalents in E. indica, E. intermedia, E. tristachya and E. floccifolia and 8 bivalents in E. multiflora were invariably noticed. In E. coracana X E. indica hybrids a mean chromosome pairing of 8.84(I) + 8.80(II) + 0.03(III) + 0.10(IV) per cell was found. About 86.5% of the cells showed the typical 9(I) + 9(II) configuration, suggesting that E. indica (AA) is one of the diploid genome donors to cultivated species E. coracana. A mean chromosome pairing of 11.08(I) + 7.63(II) + 0.16(III) + 0.04(IV) per cell was found in E. coracana X E. floccifolia hybrids. Two to ten bivalents and varying numbers of univalents were seen in 55% of the cells. About 45% of the cells showed the 9(I) + 9(II) configuration. Various evidence suggests that perennial E. floccifolia is a primitive member of the 'A' genome group of Eleusine species, and it may not be a genome donor to E. coracana. In E. coracana X E. multiflora hybrids (2n = 26) mean chromosome pairing of 21.45(I) + 1.97(II) + 0.13(III) + 0.04(IV) per cell was found. About 91% of the cells were observed to have 20-26 univalents. Only a small percentage of the cells contained bivalents or multivalents. This pairing behaviour indicates that E. multiflora lacks genomic homology with the 'A' or 'B' genome of E. coracana. Genomically E. multiflora is a distinct species and a genomic symbol of 'C' is assigned to it. Identification of the 'B' genome donor species to cultivated millet. E. coracana remains elusive.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002241071

PMID: 24201369

DOI: 10.1007/BF00224180

Download PDF Full Text: The 'A' genome donor of Eleusine coracana (L.) Gaertn. (Gramineae)


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:
Close
Close

Other references

Ramesam V., 1987: Hydrogeochemistry of fluoride in the drought prone hard rock regions of peninsular india. Fluorosis is a crippling disease affecting the teeth and/or bones of humans and livestock in many parts of peninsular India. Such endemic areas were studied to understand the fluoride hydrogeochemistry in the rain-shadow region where mean annual r...

Collier, P.; Wojnarowska, F.; Allen, J.; Kirtschig, G., 1994: Molecular overlap of the IgA target antigens in the subepidermal blistering diseases. Linear IgA disease (LAD) has circulating IgA auto-antibodies which have been found to be associated with epidermal- and dermal-derived antigens. The localization and molecular weight(s) of the IgA target antigen(s) implicated in LAD and their rela...

Wallwork, J.C., 1987: Appraisal of the methodology and applications for measurement of the zinc content of blood components as indicators of zinc status. Methods for the measurement of the zinc content of blood components (plasma, erythrocytes, platelets, mononuclear leukocytes and polymorphonuclear neutrophils) as indicators of the Zn status of animals were reviewed and evaluated. The values of pl...

Reznik, E. P., 1990: Quantitative evaluation of the efficacy of experimental Borrelia persica transmission by Ornithodoros papillipes. Communication 1. Two forms of borreliaemia in guinea-pigs. Nymphs and adults of O. papillipes [O. tholozani] were fed on guineapigs with high B. persica parasitaemia, and kept in the laboratory for one year when they were fed individually on uninfected guineapigs. Afterwards these (numbered) ticks were ke...

Wilkus, R.J.; Chatrian, G.E.; Lettich, E., 1971: The electroretinogram during terminal anoxia in humans. Electroencephalography and Clinical Neurophysiology 31(6): 537-546

Croall, J.; Grech, P., 1970: Hyperflexion of the small-for-dates fetus. Journal of Obstetrics and Gynaecology of the British Commonwealth 77(9): 808-808

Mortensen, A.; Skibsted, L.H., 1997: Importance of carotenoid structure in radical-scavenging reactions. The rate of (parallel) reaction between carotenoids and phenoxyl radical to yield (i) carotenoid/ phenoxyl adducts and (ii) carotenoid radical cations (in effect regenerating the phenol by reduction) has been found to increase for an increasing nu...

Guyomarch, J-P.; Monnat, J-Y., 1978: Caracteristiques et comportement du petiole deverse a la mer. Penn ar Bed (Brest): 299-310 No. 93

Rozman, T.A.; Klövekorn, G.; Kompa, H., 1984: Double-blind group comparison of topical meclocycline, erythromycin and placebo in the treatment of papulo-pustulosa acne. Ten institutions participated in a controlled clinical trial in order to evaluate the efficacy of topical meclocycline and erythromycin in comparison to placebo with regard to papulopustular acne. Both drugs had been incorporated in the same galen...

Mitra, A.; Fay, P.A.; Morgan, J.K.; Vendura, K.W.; Versaggi, S.L.; Riordan, J.T., 2013: Sigma factor N, liaison to an ntrC and rpoS dependent regulatory pathway controlling acid resistance and the LEE in enterohemorrhagic Escherichia coli. Enterohemorrhagic Escherichia coli (EHEC) is dependent on acid resistance for gastric passage and low oral infectious dose, and the locus of enterocyte effacement (LEE) for intestinal colonization. Mutation of rpoN, encoding sigma factor N (σ(N))...