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Mostrando ítems 1-6 de 6
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Early genetic consequences of defaunation in a large-seeded vertebrate-dispersed palm (Syagrus romanzoffiana)
Giombini, Mariano Ignacio; Bravo, Susana Patricia; Sica, Yanina; Tosto, Daniela Sandra (2017)Plant populations are seriously threatened by anthropogenic habitat disturbance. In particular, defaunation may disrupt plantdisperser mutualisms, thus reducing levels of seed-mediated gene flow and genetic variation in ... -
The key role of the largest extant Neotropical frugivore (Tapirus terrestris) in promoting admixture of plant genotypes across the landscape
Giombini, Mariano Ignacio; Bravo, Susana Patricia; Tosto, Daniela Sandra (2016)The historical and contemporary loss of large-bodied frugivores has disrupted many plant-disperser mutualisms, with potentially profound consequences for plants. Although several aspects of seed dispersal by megafrugivores ... -
On the origin of neo-sex chromosomes in the neotropical dragonflies Rhionaeschna bonariensis and R. planaltica (Aeshnidae, Odonata)
Mola, Liliana M.; Vrbová, Iva; Tosto, Daniela Sandra; Zrzavá, Magda; Marec, František (MDPI, 2022-12)Odonata have holokinetic chromosomes. About 95% of species have an XX/X0 sex chromosome system, with heterogametic males. There are species with neo-XX/neo-XY sex chromosomes resulting from an X chromosome/autosome fusion. ... -
Phylogeny of digitaria sections Trichachne and Trichophorae (Poaceae, Panicoideae, Paniceae) : a morphological and molecular analysis. New circumscription and synopsis
Lo Medico, Julia Mariela; Tosto, Daniela Sandra; Rua, Gabriel Hugo; Rugolo de Agrasar, Zulma Esther; Scataglini, Maria Amalia; Vega, Andrea Susana (2017)The present study provides evidence for taxonomic delimitation of Digitaria sect. Trichachne based on morphological data (micro- and macromorphology) and molecular data. A phylogenetic analysis was performed using 121 ... -
Population genetics structure of glyphosate‐resistant Johnsongrass (Sorghum halepense L. Pers) does not support a single origin of the resistance
Fernandez, Luis German; De Haro, Luis Alejandro; Distefano, Ana Julia; Martinez, Maria Carolina; Lia, Veronica Viviana; Papa, Juan Carlos; Olea, Ignacio; Tosto, Daniela Sandra; Hopp, Horacio Esteban (Wiley, 2013-09)Single sequence repeats (SSR) developed for Sorghum bicolor were used to characterize the genetic distance of 46 different Sorghum halepense (Johnsongrass) accessions from Argentina some of which have evolved toward ... -
Validation of reference genes for quantitative PCR in Johnsongrass (Sorghum halepense L.) under glyphosate stress
Ulrich, Maria Noelia; Muñiz-Padilla, Esteban; Corach, Alejandra; Hopp, Horacio Esteban; Tosto, Daniela Sandra (MDPI, 2021-08)Weeds are one of the main causes of the decrease in crop yields, with Johnsongrass (Sorghum halepense L.) being one of the most significant. Weeds can be controlled by herbicides, but some have developed resistance. ...