Results 51 to 60 of about 3,118 (119)
New Phytologist, Volume 251, Issue 2, Page 696-706, July 2026.Summary The Arctic is experiencing some of the world's most rapid changes in climate. Arctic plant flowering time responses to climate change are understudied. Globally, conflicting evidence exists on whether flowering time responses to temperature are evolutionarily conserved.
Zoe A. Panchen +3 more
wiley +1 more source
Anais da Academia Brasileira de Ciências, 2010 This study presents paleoenvironmental data based on pollen, elemental and isotopic compositions of organic matter (TOC, N, d13C and d15N) and 14C dating of 170 cm lake sediment record.
Luiz C.R. Pessenda +6 more
doaj +1 more source
Three closely linked X‐chromosomal genes potentially control sex determination in Cannabis sativa
New Phytologist, Volume 251, Issue 1, Page 505-522, July 2026.Summary Sex determination mechanisms in dioecious plants remain poorly understood yet offer an excellent model system to study genetic changes underlying morphological evolution. We investigated the genetic basis of sex determination in Cannabis sativa, combining quantitative trait locus mapping in a segregating population, comparative transcriptomics ...
Matteo Toscani +8 more
wiley +1 more source
Desenvolvimento floral e produção de pessegueiros 'granada' sob distintas condições climáticas
Revista Brasileira de Fruticultura, 2011 A cultivar de pessegueiro 'Granada' vem apresentando baixa frutificação e irregularidade de produção nas principais regiões produtoras de pêssego no Estado do Rio Grande do Sul.
Gilmar Antônio Nava +5 more
doaj
Ecological change may be a common initiator of evolutionary pollinator shifts
New Phytologist, Volume 250, Issue 6, Page 3572-3583, June 2026.Summary Although evolutionary pollinator shifts are accepted as major sources of floral and species diversity in angiosperms, the mechanisms triggering pollinator shifts remain largely unexplored. In 1970, Stebbins proposed that ecological change may be a common initiator of evolutionary pollinator shifts, but empirical tests of Stebbins' hypothesis ...
Agnes S. Dellinger
wiley +1 more source
Somatic genome‐doubling is the most parsimonious route to allopolyploidy
New Phytologist, Volume 250, Issue 5, Page 2845-2851, June 2026.Summary The origin of a polyploid can hinge on a single errant cell division, a mistake in the cell cycle that leads to genome‐doubling and re‐writes the rules of chromosome pairing and segregation. In plants, the evolutionary significance of these errors is magnified by lack of an early sequestered germline, meaning somatic mutations can be heritable.
Robin Burns +2 more
wiley +1 more source
Isolamento de esporos de Paenibacillus larvae subsp. larvae no Brasil [PDF]
Pesquisa Agropecuária Brasileira, 2003 Este trabalho objetivou detectar presença de esporos de Paenibacillus larvae subsp. larvae em produtos de um entreposto do interior do Estado do Rio Grande do Sul, a identificação de possíveis fontes de contaminação e a avaliação da possibilidade da ...
Dulce Maria Tocchetto Schuch +2 more
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Ciência Rural, 1999 Foi analisado o espectro polínico de treze amostras de própolis, oito provenientes do estado do Rio de Janeiro, duas de Minas Gerais, uma do Rio Grande do Sul e uma de São Paulo.
Ortrud Monika Barth +2 more
doaj +1 more source
Acta Botânica Brasílica, 2004 The Solanaceae family has a wide distribution, mainly in the tropical and subtropical areas of South America. Solanum L. is one of the most important genera of the family with approximately 1,200 species.
Alexandre Coletto da Silva +3 more
doaj +1 more source
Revista Brasileira de Fruticultura, 2013 Um protótipo de máquina coletora de anteras foi projetado e construído, e seu desempenho foi avaliado, comparando - se com o método de coleta manual, em flores rosáceas e campanuladas de pessegueiro (Prunus persica).
Rodrigo Tonet +3 more
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