Results 1 to 10 of about 92 (74)

Localization of 45S rDNA and telomeric sites on holocentric chromosomes of Rhynchospora tenuis Link (Cyperaceae)

Genetics and Molecular Biology, 2003
Rhynchospora tenuis Link (Cyperaceae) is a weed widely distributed in Brazil that presents a small number of holocentric chromosomes (2n = 4) with some autopolyploid populations (2n = 8). The haploid number n = 2 is considered as a derivative of the base
André L L Vanzela, Angeles Cuadrado, Marcelo Guerra   +2 more
exaly   +6 more sources

Morphological and genomic characterization of Rhynchospora tenuis complex (Cyperaceae) and its taxonomic implications [PDF]

Rodriguesia, 2012
Species of Rhynchospora sect. Tenues are morphologically very similar. Rhynchospora tenuis complex is the most problematic species complex in this group and it concentrates entities of difficult delimitation, as is the case of R. tenuis, R. tenuis subsp. austro-brasiliensis and R. enmanuelis.
Modesto Luceno, André L L Vanzela, Trevisan Rafael   +2 more
exaly   +5 more sources

Condensation patterns of prophase/prometaphase chromosome are correlated with H4K5 histone acetylation and genomic DNA contents in plants. [PDF]

PLoS ONE, 2017
Mitotic prophase chromosome condensation plays an essential role in nuclear division being therefore regulated by highly conserved mechanisms. However, degrees of chromatin condensation in prophase-prometaphase cells may vary along the chromosomes ...
Lidiane Feitoza, Lucas Costa, Marcelo Guerra   +2 more
doaj   +2 more sources

Diversidade de espécies herbáceo-arbustivas e zonação florí­stica em uma vereda no Distrito Federal

Heringeriana, 2014
A vereda é uma fitofisionomia savânica do bioma Cerrado onde a variação da profundidade do lençol freático pode determinar a formação de zonas florí­sticas.
Francisco Ferreira de Miranda Santos, Cássia Beatriz Rodrigues Munhoz   +1 more
doaj   +5 more sources

New records of rare species of vascular plants in Murmansk Region. II.

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
The results of surveys of rare and red-listed plants in the eastern part of the Kola Peninsula (Murmansk Region): in estuarine parts of the Ponoy and Rusinga Rivers, as well as at Orlovsky Cape, are presented.
Valentina Kostina, Evgeniy Borovichev, Olga Belkina, Ekaterina Kopeina   +3 more
doaj   +1 more source

Morphological and genomic characterization of Rhynchospora tenuis complex (Cyperaceae) and its taxonomic implications

Rodriguésia
Species of Rhynchospora sect. Tenues are morphologically very similar. Rhynchospora tenuis complex is the most problematic species complex in this group and it concentrates entities of difficult delimitation, as is the case of R. tenuis, R. tenuis subsp.
Vanessa Silva Michelan, Rafael Trevisan, Carlos Roberto Maximiano da Silva, Rogério Fernandes de Souza, Modesto Luceño, André Luís Laforga Vanzela   +5 more
doaj   +1 more source

Sex without crossovers mimics clonal reproduction in the holocentric plant Rhynchospora tenuis

Abstract Meiotic recombination ensures accurate chromosome segregation and promotes genetic diversity by generating crossovers between homologous chromosomes 1 . While essential in most sexually reproducing organisms, recombination is variably regulated and can be absent in some ...
Meng Zhang, Marco Castellani, Stefan Steckenborn, Maciej Majka, Georgios Tsipas, Thiago Nascimento, Ulla Neumann, Gokilavani Thangavel, Laura A. Robledillo, Thomas Lux, Lorraine Deberón, Ursula Pfordt, José A. Campoy, Athul Vijayan, Ton Timmers, Nafiseh Sargheini, Magdalena Marek, Hequan Sun, Paulo G. Hofstatter, Bruno Huettel, Steven Dreissig, Klaus F. X. Mayer, Duarte D. Figueiredo, André L. L. Vanzela, Korbinian Schneeberger, André Marques   +25 more
openaire   +1 more source

Investigating the diversification of holocentromeric satellite DNA Tyba in Rhynchospora (Cyperaceae). [PDF]

Ann Bot, 2023
Costa L, Marques A, Buddenhagen CE, Pedrosa-Harand A, Souza G.   +4 more
europepmc   +1 more source

Aiming off the target: recycling target capture sequencing reads for investigating repetitive DNA. [PDF]

Ann Bot, 2021
Costa L, Marques A, Buddenhagen C, Thomas WW, Huettel B, Schubert V, Dodsworth S, Houben A, Souza G, Pedrosa-Harand A.   +9 more
europepmc   +1 more source

Meiosis Progression and Recombination in Holocentric Plants: What Is Known? [PDF]

Front Plant Sci, 2021
Hofstatter PG, Thangavel G, Castellani M, Marques A.   +3 more
europepmc   +1 more source