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| Yamagishi-Costa,Júlia; Barbosa,Andréa Rodrigues; Shimizu,Gustavo Hiroaki; Yamamoto,Kikyo; Forni-Martins,Eliana Regina. |
| ABSTRACT With five neotropical genera and ca. 220 species, Vochysieae is the largest tribe of Vochysiaceae, comprising more than 90 % of its species. Preliminary phylogenetic analyses with matK sequence data indicated that Vochysieae may be paraphyletic, separated into the clades QRC (Qualea, Ruizterania and Callisthene) and VS (Vochysia, Salvertia). Whether the genera and the infrageneric taxa are artificial is still controversial. In this study, we analyzed the distribution of chromosome numbers in mitotic or meiotic cells among 20 species belonging to the genera Callisthene, Qualea, Salvertia, and Vochysia, that are native and common in Central and Southeast Brazilian forests or savannas. Species of Callisthene and Qualea possessed 2n = 22, while... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Callisthene; Cytotaxonomy; Myrtales; Neotropics; Qualea; Salvertia; Vochysia; Vochysiaceae. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000200314 |
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| Forni-Martins,Eliana Regina; Martins,Fernando Roberto. |
| Cerrado is the Brazilian name for the neotropical savanna, which occurs mainly in Brazilian Central Plateau, composed of herbaceous-subshrubby and shrubby-arboreal floras, both of which are heliophilous, highly diverse and regionally differentiated. Considering species distribution and chromosome numbers, some authors have proposed that the herbaceous-subshrubby flora of the neotropical savanna is quite old, while the shrubby-arboreal flora is derived from forests, a hypothesis that implies higher chromosome numbers in the savanna than in the forest. If, however, chromosome numbers are similar in the cerrado and in forests, both could be similarly old, indicating that bi-directional flow of flora occurred in the past. This paper presents data on chromosome... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000400040 |
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| Kinoshita,Luiza Sumiko; Torres,Roseli Buzanelli; Forni-Martins,Eliana Regina; Spinelli,Tatiana; Ahn,Yu Jie; Constâncio,Sábata Silva. |
| Foi realizado o levantamento florístico da floresta estacional semidecídua localizada no Sítio São Francisco, bem como a caracterização das síndromes de polinização e de dispersão das espécies. Foram encontrados um total de 46 famílias, 116 gêneros e 148 espécies (50 árvores, 35 lianas, 26 arbustos e 37 ervas). As famílias com maior riqueza de espécies arbóreas foram Euphorbiaceae (8), Fabaceae (7), Meliaceae (6) e Rutaceae (5). Entre as lianas, as famílias mais ricas foram Bignoniaceae (13), Sapindaceae (5) e Malpighiaceae (3); entre as herbáceas, Poaceae (8) e Asteraceae (5); e entre as arbustivas, Piperaceae (7) e Rubiaceae (5). As síndromes de polinização e de dispersão mais freqüentes foram melitofilia (73%) e zoocoria (63%), ambas predominantes no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Floresta estacional semidecídua; Fragmento florestal; Interações animal×planta. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000200007 |
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