Results 31 to 40 of about 43,706 (302)

Karyotype and Chromosome Morphology of Parthenium argentatum.

CYTOLOGIA, 1994
The genus Parthenium contains plants which produce latex, although only P. argentatum produces the commercially important product, rubber, in sufficiently large quantities. Parthenium forms a natural polyploid series (Stebbins and Kodani 1944, Bergner 1944) and although many meiotic studies have been conducted, little mitotic karyological data has been
Lisa A. Herickhoff, Jingkun Ho, Ralph A. Backhaus   +2 more
openaire   +2 more sources

Karyological and morphological variation within Petrosimonia brachiata Bunge in Bulgaria [PDF]

Botanica Serbica, 2019
We studied karyological and morphological variability of the only representative of the genus Petrosimonia (Amaranthaceae) in Bulgaria and evaluated the current state of its populations in the country.
Neli Grozeva, Mima Todorova, Dimitar Pavlov   +2 more
doaj   +1 more source

Cytological features of penaut genome [PDF]

, 2017
The genus Arachis is composed of 82 species (Krapovickas and Gregory 1994; Valls and Simpson 2005; Valls et al 2013; Santana and Valls 2015) mainly distributed within a large region of South America, which extends from the eastern foothills of the Andes ...
Chalup, Laura María Isabel, Lavia, Graciela Inés, Ortiz, Alejandra Marcela, Robledo Dobladez, Germán Ariel, Samoluk, Sergio Sebastián, Seijo, José Guillermo, Silvestri, María Celeste   +6 more
core   +1 more source

A new species of Odontophrynus (Anura, Odontophrynidae) from the southern portion of the Mantiqueira mountains

European Journal of Taxonomy, 2022
Using an integrative approach (morphology of the adult and larvae, bioacoustics, osteology, karyotype, and molecular data), we described a new tetraploid species of Odontophrynus to the Mantiqueira mountain range, in southeastern Brazil.
Matheus de Toledo Moroti, Mariana Pedrozo, Marcos Rafael Severgnini, Guilherme Augusto-Alves, Simone Dena, Itamar Alves Martins, Ivan Nunes, Edelcio Muscat   +7 more
doaj   +1 more source

Induction of chromosome damage by ultraviolet light and caffeine: Correlation of cytogenetic evaluation and flow karyotype [PDF]

, 1982
Asynchrononously growing cells of a M3-1 Chinese hamster line were ultraviolet (UV) irradiated ( = 254 nm) with UV fluences up to 7.5 J/m2. After irradiation, cells were incubated with or without 2 mM caffeine for 20 hr, then mitotic cells were selected ...
Carrano, Carrano, Carrano, Chu, Cremer, Cremer, Cremer, Cremer, Gray, Gray, Gray, Horan, Kato, Kihlman, Langlois, Lovelace, Moore, Nilsson, Otto, Roberts, Yu   +20 more
core   +1 more source

Renal Tumor With Overlapping Distal Nephron Morphology and Karyotype

Archives of Pathology & Laboratory Medicine, 2004
Abstract Although most renal epithelial tumors are derived from the proximal nephron, approximately 10% are believed to originate in the distal nephron. This latter group encompasses oncocytoma, chromophobe renal cell carcinoma, and several rare types, including collecting duct carcinoma and renal medullary carcinoma. Despite progress in
Valerie, Lindgren, Gladell P, Paner, Robert C, Flanigan, Joseph I, Clark, Steven C, Campbell, Maria M, Picken   +5 more
openaire   +2 more sources

Effect of antibiotics against Mycoplasma sp. on human embryonic stem cells undifferentiated status, pluripotency, cell viability and growth [PDF]

, 2013
Human embryonic stem cells (hESCs) are self-renewing pluripotent cells that can differentiate into specialized cells and hold great promise as models for human development and disease studies, cell-replacement therapies, drug discovery and in vitro ...
Bluguermann, Carolina, Miriuka, Santiago Gabriel, Riva, Diego Ariel, Romorini, Leonardo, Scassa, Maria Elida, Sevlever, Gustavo, Videla Guillermo, Richardson   +6 more
core   +1 more source

Occurrence of euchromatic B chromosomes in natural populations of Moenkhausia bonita and M. forestii (Pisces: Characidae)

Neotropical Ichthyology, 2021
Moenkhausia is a highly specious genus among the Characidae, composed of 96 valid species. Only twelve species have a known karyotype. Thus, here are presented the first cytogenetic data of two allopatric populations of Moenkhausia bonita and one of M ...
Leandro Ranucci, Carlos A. Fernandes, Luciana A. Borin-Carvalho, Isabel C. Martins-Santos, Ana L. B. de Portela-Castro   +4 more
doaj   +1 more source

Atlantic moonfishes: independent pathways of karyotypic and morphological differentiation [PDF]

Helgoland Marine Research, 2012
Fish of the genus Selene, known as lookdowns or moonfish, are one of the most morphologically derived groups of the family Carangidae, whose phylogenetic relationships are still largely unknown. In this study, we discuss karyoevolutionary aspects of three representatives of this genus from the Western Atlantic: Selene brownii (2n = 48; FN = 48), Selene
Uedson Pereira Jacobina, Marcelo Ricardo Vicari, Pablo Ariel Martinez, Marcelo de Bello Cioffi, Luiz Antonio Carlos Bertollo, Wagner Franco Molina   +5 more
openaire   +1 more source

A new karyotype of Wiedomys pyrrhorhinus (Rodentia: Sigmodontinae) from Chapada Diamantina, northeastern Brazil

Zoologia (Curitiba), 2011
A new karyotype of Wiedomys pyrrhorhinus (Wied, 1821) is described, including G- and C-banding and Ag-NOR sites from specimens collected in the municipality of Morro do Chapéu, situated in the northern region of the Chapada Diamantina, state of Bahia ...
Ana L. G Souza, Margaret M. de O Corrêa, Cecília T. de Aguilar, Leila M Pessôa   +3 more
doaj   +1 more source