Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Aretuza Sousa"'
Publikováno v:
The Plant Journal. 106:133-141
In 1917, sex chromosomes in plants were discovered in a liverwort with hetermorphic U and V chromosomes. Such heteromorphy is unexpected because, unlike the XY chromosomes in diploid-dominant plants, in haploid-dominant plants the female U and the ma
Publikováno v:
Ann Bot
Background and Aims Unlike other nuclear genes in eukaryotes, rDNA genes (5S and 35S loci) are present in numerous copies per cell and, when stained, can therefore provide basic information about genome organization. In tracheophytes (vascular plants
Autor:
Susanne S. Renner, Aretuza Sousa
Publikováno v:
Bryophyte Diversity and Evolution. 43
Cytogenetic studies in bryophytes have been limited by the difficulty of obtaining sufficient dividing nuclei and by the absence of modern protocols. The technical difficulties stem from the plants’ small size and lack of roots and pollen mother ce
Autor:
Israel Loera, Oriane Hidalgo, Jordan S. Metzgar, Ilia J. Leitch, Stefanie M. Ickert-Bond, Aretuza Sousa, Jaume Pellicer, Ya Min
Publikováno v:
Digital.CSIC: Repositorio Institucional del CSIC
Consejo Superior de Investigaciones Científicas (CSIC)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Consejo Superior de Investigaciones Científicas (CSIC)
Digital.CSIC. Repositorio Institucional del CSIC
instname
While polyploidization is recognized as a major evolutionary driver for ferns and angiosperms, little is known about its impact in gymnosperms, where polyploidy is much less frequent. We explore Ephedra to evaluate (i) the extent of genome size diver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d502e431b5d6bf7eb3f4001cf755e131
Publikováno v:
TAXON. 66:1393-1405
Watermelons are among the most important vegetable crops worldwide, but targeted breeding is hindered by problems with Citrullus taxonomy. Here we clarify nomenclature and species relationships in Citrullus, its chromosome numbers, and the likely geo
Publikováno v:
Journal of Systematics and Evolution. 55:333-339
The three bryophyte lineages have longy-lived gametophytes that are either bisexual, producing both male- and female gametes, or sexually specialized and then producing only one type of gamete. Phylogenies suggest repeated evolutionary switches betwe
Publikováno v:
Chromosome Research. 25:191-200
Our understanding of the evolution of plant sex chromosomes is increasing rapidly due to high-throughput sequencing data and phylogenetic and molecular-cytogenetic approaches that make it possible to infer the evolutionary direction and steps leading
Publikováno v:
Annals of Botany
Introduction Gnetophytes, comprising the genera Ephedra, Gnetum and Welwitschia, are an understudied, enigmatic lineage of gymnosperms with a controversial phylogenetic relationship to other seed plants. Here we examined the organization of ribosomal
Autor:
Susanne S. Renner, Aretuza Sousa
Publikováno v:
Botanical Journal of the Linnean Society. 177:15-26
Combining molecular cytogenetics and phylogenetic modelling of chromosome number change can shed light on the types of evolutionary changes that may explain the haploid numbers observed today. Applied to the monocot family Araceae, with chromosome nu
Autor:
Andreas Fleischmann, Eva M. Temsch, Kai F. Müller, Johann Greilhuber, Aretuza Sousa, Fernando Rivadavia, Todd P. Michael, Günther Heubl, Wenqin Wang
Publikováno v:
Annals of Botany. 114:1651-1663
Some species of Genlisea possess ultrasmall nuclear genomes, the smallest known among angiosperms, and some have been found to have chromosomes of diminutive size, which may explain why chromosome numbers and karyotypes are not known for the majority