Indicadores de sustentabilidade para unidades de produção familiar com atividade leiteira.

Resumo Existe uma grande preocupação em relação ao êxodo rural e à redução do número de produtores de leite no Rio Grande do Sul. O objetivo deste trabalho foi construir um instrumento de avaliação da sustentabilidade de unidades de produção familiar com atividade leiteira. A equipe interinstitucional da Rede Leite se mobilizou por mais de dois anos para chegar a um conjunto mínimo de indicadores, a partir de descritores e pontos críticos identificados nos sistemas produtivos, que tornasse operacional o conceito de sustentabilidade. O instrumento final consta de 12 indicadores e apresenta potencial para avaliar a sustentabilidade, identificar pontos fortes, fracos, riscos e oportunidades, subsidiando a extensão rural, pesquisa, programas de desenvolvimento e políticas públicas. Palavras-chave: Rede Leite, pesquisa-desenvolvimento, instrumento, descrito

One thousand plant transcriptomes and the phylogenomics of green plants

Abstract: Green plants (Viridiplantae) include around 450,000–500,000 species1, 2 of great diversity and have important roles in terrestrial and aquatic ecosystems. Here, as part of the One Thousand Plant Transcriptomes Initiative, we sequenced the vegetative transcriptomes of 1,124 species that span the diversity of plants in a broad sense (Archaeplastida), including green plants (Viridiplantae), glaucophytes (Glaucophyta) and red algae (Rhodophyta). Our analysis provides a robust phylogenomic framework for examining the evolution of green plants. Most inferred species relationships are well supported across multiple species tree and supermatrix analyses, but discordance among plastid and nuclear gene trees at a few important nodes highlights the complexity of plant genome evolution, including polyploidy, periods of rapid speciation, and extinction. Incomplete sorting of ancestral variation, polyploidization and massive expansions of gene families punctuate the evolutionary history of green plants. Notably, we find that large expansions of gene families preceded the origins of green plants, land plants and vascular plants, whereas whole-genome duplications are inferred to have occurred repeatedly throughout the evolution of flowering plants and ferns. The increasing availability of high-quality plant genome sequences and advances in functional genomics are enabling research on genome evolution across the green tree of life

Rede Leite: parâmetros e indicadores sociais, ambientais, econômicos e produtivos de sistemas de produção de base familiar com pecuária de leite.

O programa Rede Leite, que há mais de cinco anos reúne profissionais de sete instituições de pesquisa, ensino e extensão, vem atuando no sentido de fortalecer a agricultura familiar e a produção de leite na Região Noroeste do Rio Grande do Sul.Editores Técnicos: Paulo do Carmo Martins, Gilberto Antônio Piccinini, Ernesto Ênio Budke Krug, Marne Sidney de Paula Moreira, Carlos Eugênio Martins, Oreno Ardêmio Heineck, Marcelo Henrique Otenio, Leonardo Dornelles de Dorneles, Virginia de Souza Columbiano Barbosa, Leonardo Mariano Gravina Fonseca. O CD-Rom contém também uma cópia digital do livro "Sustentabilidade ambiental, social e econômica da cadeia produtiva do leite: desafios e perspectivas " e os dez projetos premiados no "Prêmio Município Amigo do Leite - edição 2015"

One thousand plant transcriptomes and the phylogenomics of green plants

Abstract: Green plants (Viridiplantae) include around 450,000–500,000 species1, 2 of great diversity and have important roles in terrestrial and aquatic ecosystems. Here, as part of the One Thousand Plant Transcriptomes Initiative, we sequenced the vegetative transcriptomes of 1,124 species that span the diversity of plants in a broad sense (Archaeplastida), including green plants (Viridiplantae), glaucophytes (Glaucophyta) and red algae (Rhodophyta). Our analysis provides a robust phylogenomic framework for examining the evolution of green plants. Most inferred species relationships are well supported across multiple species tree and supermatrix analyses, but discordance among plastid and nuclear gene trees at a few important nodes highlights the complexity of plant genome evolution, including polyploidy, periods of rapid speciation, and extinction. Incomplete sorting of ancestral variation, polyploidization and massive expansions of gene families punctuate the evolutionary history of green plants. Notably, we find that large expansions of gene families preceded the origins of green plants, land plants and vascular plants, whereas whole-genome duplications are inferred to have occurred repeatedly throughout the evolution of flowering plants and ferns. The increasing availability of high-quality plant genome sequences and advances in functional genomics are enabling research on genome evolution across the green tree of life