Yadav, AK, Singh, S., Dhyani, D. and Ahuja, PS 2011. A review on the improvement of
Stevia [Stevia rebaudiana (Bertoni)]. Can. J. Plant Sci. 91: 1–27. Stevia rebaudiana (Bertoni) …

Em decorrência de sua visão adaptada apenas à luz do dia, os humanos primitivos
desenvolveram um temor e um respeito atávicos pelas trevas noturnas, extensivos aos …

Introdução: a avaliação de uma exposição mensura sua intensidade, frequência e duração,
podendo detectar danos precoces que, se ignorados, podem evoluir para um quadro …

In this study, we examined the chromosome number and some morphological features of
strains of Stevia rebaudiana. The chromosomes were analyzed during mitosis and …

Loricariid catfishes show a predominance of homomorphism in sex chromosomes, but cases
of simple and multiple systems were also found. Here we describe two cases of multiple sex …

ABSTRACT A study was conducted to produce higher biomass-yielding stevia Stevia
rebaudiana (Bertoni) with larger leaf size and high glycoside content. To improve leaf yield …

Deschampsia antactica E. Desv. is one of the only two native vascular plants of Antarctica,
having a disjunct distribution with South America. Its presence in different environmental …

Unlike the Arctic flora, with many flowering plant species offering opportunities to study
evolutionary processes, the Antarctic flora offers only two. One of them is the Antarctic grass …

Polytene chromosomes are structures found in highly specialized tissues in some animal
and plant species, which are amplified through successive cycles of endoreduplication …

The distribution of ploidy levels and their ecological associations were studied using the
genus Lessingianthus (Vernonieae, Asteraceae) as a model system. This genus is very …