Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Tomáš Urfus"'
Publikováno v:
Plant Diversity, Vol 44, Iss 5, Pp 492-498 (2022)
Relationships between genome size and environmental variables suggest that DNA content might be adaptive and of evolutionary importance in plants. The genus Larrea provides an interesting system to test this hypothesis, since it shows both intra- and
Externí odkaz:
https://doaj.org/article/54c2bf810f99420fa2ce466aeb429b43
Publikováno v:
PLoS ONE, Vol 14, Iss 7, p e0218389 (2019)
Polyploidy is one of the major forces of plant evolution and widespread mixed-ploidy species offer an opportunity to evaluate its significance. We therefore selected the cosmopolitan species Urtica dioica (stinging nettle), examined its cytogeography
Externí odkaz:
https://doaj.org/article/d96002b5386b41d2a613520e584e53f2
Autor:
Ivan Kuneš, Rostislav Linda, Tomáš Fér, Petr Karlík, Martin Baláš, Jana Ešnerová, Jan Vítámvás, Jan Bílý, Tomáš Urfus
Publikováno v:
PLoS ONE, Vol 14, Iss 10, p e0224387 (2019)
Until recently, Czech taxonomists often treated Betula carpatica as a distinct species. Several morphological traits for distinguishing B. carpatica from B. pubescens or other birches are described in literature; however, it has been proven impossibl
Externí odkaz:
https://doaj.org/article/8c8b40f61ce444d1843a8887c812afbd
Publikováno v:
PLoS ONE, Vol 9, Iss 6, p e99552 (2014)
Introgressive hybridization is an important evolutionary process frequently contributing to diversification and speciation of angiosperms. Its extent in other groups of land plants has only rarely been studied, however. We therefore examined the leve
Externí odkaz:
https://doaj.org/article/8cb8c2515d00497c9fa01491e2dfd5f0
Publikováno v:
Plant Diversity. 44:492-498
Relationships between genome size and environmental variables suggest that DNA content might be adaptive and of evolutionary importance in plants. The genus Larrea provides an interesting system to test this hypothesis, since it shows both intra- and
Publikováno v:
Botanical Journal of the Linnean Society. 199:728-739
The delimitation of lineages in the Cystopteris fragilis complex is complicated by the presence of multiple cytotypes and a lack of defining morphological characters. One character, the production of rugose instead of regular spiny spores, is sometim
Publikováno v:
Preslia. 93:377-397
Publikováno v:
Plant Systematics and Evolution. 308
About 80% of angiosperms form a monosporic Polygonum-type embryo sac whereas in the remaining species eleven other types of embryo sac are found. Evidence as to the type of embryo sac is lacking for many plant species, and the role of higher-ploidy e
Publikováno v:
Zoological Journal of the Linnean Society. 193:145-157
Genome size and the position of 18S ribosomal DNA (rDNA) were analysed in two Himacerus, eight Nabis and two Prostemma species from the family Nabidae using flow cytometry and fluorescence in situ hybrization techniques. The karyotypes of Nabis bifor
Autor:
Šárka Hořčicová, Ludmila Rejlová, Alžběta Böhmová, Tomáš Urfus, Philipp-André Schmidt, Zuzana Chumová, Pavel Trávníček, Jindřich Chrtek, Petr Vít, Jiřina Josefiová
Publikováno v:
Botanical Journal of the Linnean Society. 195:606-621
Polyploidization is generally considered a major evolutionary force that can alter the genetic diversity, morphology, physiology and ecology of plants. One striking example is the polyploid Urtica dioica complex, in which diploid taxa are often found