+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Karyotypes of two cytotypes of Paspalum quadrifarium Lam. (Poaceae). An alternative technique for small chromosomes in plants

, : Karyotypes of two cytotypes of Paspalum quadrifarium Lam. (Poaceae). An alternative technique for small chromosomes in plants. Genetics and Molecular Biology 26(4): 499-503

Paspalum quadrifarium is a bunchgrass native to Uruguay, Argentina, and southern Brazil. Diploid, triploid, tetraploid and hexaploid cytotypes have been reported for this species of the Quadrifaria group of Paspalum. In this group, a high degree of cytogenetic homology between the genomes of several diploid species has been reported, based on meiotic pairing in interspecific hybrids; multivalent associations would thus be expected in polyploid hybrids.


Other references

Guillaume, Fédéric.; Perrin, N., 2009: Inbreeding load, bet hedging, and the evolution of sex-biased dispersal. Abstract: Inbreeding load affects not only the average fecundity of philopatric individuals but also its variance. From bet-hedging theory, this should add further dispersal pressures to those stemming from the mere avoidance of inbreeding. Pressu...

Raso, A.M.; Raso, S.M., 1978: Liquid-crystal thermography in the diagnosis of Dupuytren's contracture. Panminerva Medica 20(2): 113-116

Attisano, L.; Carcamo, J.; Ventura, F., 1993: Identification of human activin and TGFb type I receptors that form heteromeric kinase complexes with type II receptors. Transforming growth factor b (TGFb) and activin each bind to pairs of membrane proteins, known as receptor types I and II, that associate to form a signaling complex. We report that TSR-I and ActR-I, two human transmembrane serine/threonine kinase...

Chiba, Y.; Oka, K.; Saito, H.; Nagayama, R.; Murata, M.; Mori, N., 2010: Primary cardiac B-cell lymphoma presented as heart tamponade and atrioventricular block: a case report. Primay cardiac lymphoma is rare, and its diagnosis is not determined until autopsy. A 49-year-old man presented with heart tamponade and atrioventricular block. Bloody pericardiac effusion showed a monotonous proliferation of atypical large mononu...

Hodges, A.V.; Balkany, T.J.; Schloffman, J.J., 1997: Single electrode maps in device troubleshooting. This article presents case studies in which single-channel mapping was used with patients who were experiencing discomfort while using their cochlear implant devices. Repeated psychophysical testing together with integrity testing had failed to lo...

Rukhin L.B., 1936: The description of certain Favositidae occurring in the lower Devonian deposits of the Transbaikal region. Includes descriptions of new species and varieties.

Naidu, B.N.rasimhulu; Li, W.; Sorenson, M.E.; Connolly, T.P.; Wichtowski, J.A.; Zhang, Y.; Kim, O.K.; Matiskella, J.D.; Lam, K.S.; Bronson, J.J.; Ueda, Y., 2004: Organic reactions in frozen water: Michael addition of amines and thiols to the dehydroalanine side chain of nocathiacins. Nocathiacins are densely functionalized cyclic thiazolyl peptide natural products with potent in vitro and in vivo anti-bacterial activity against a variety of gram-positive bacteria, including a number of multiple drug-resistant strains. Attempts...

Sasaki, K., 2002: Method-performance study of analytical method of pesticide residue in foods. Shokuhin Eiseigaku Zasshi. Journal of the Food Hygienic Society of Japan 42(4): J242-J244

de Souza, A.Paula.Duarte.; de Jesus Borges, T.; Pillat, M.M.; Bonorino, C., 2011: CD4+ T cell response against a non-tumor antigen is unaffected in melanoma-bearing mice. The tumor microenvironment is complex and creates an immunosuppressive network to tolerize tumor-specific immune responses; however, little information is available regarding the response against non-tumor antigens in tumor-bearing individuals. Th...

Fedorenko Valeri A.; Lightfoot Peter C.; Naldrett Anthony J.; Czamanske Gerald K.; Hawkesworth Chris J.; Wooden Joseph L.; Ebel Denton S., 1996: Petrogenesis of the flood-basalt sequence at Noril'sk, north central Siberia. International Geology Review: , Pages 99-135. 1996.