Anatomy of the developing fruit of Metrodorea nigra A. St.-Hil. (Rutaceae)

Souza, Luiz Antônio de; Rosa, Sônia Maciel da; Moscheta, Ismar Sebastião

doi:10.1590/s1516-89132008000600012

Cited by 10 publications

(8 citation statements)

References 9 publications

(14 reference statements)

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“…The differentiation of the ovary wall in the pericarp of C. altissima didn't involve increase of cellular layers. In this the cell divisions ceased very early during the fruit development, before fertilization, unlike drupes, legumes, follicles and capsules that formed adaxial (ventral) meristem after the pollinization (Roth, 1977;Souza et al, 2004;Souza, 2006;Souza et al, 2008). The fruit differentiation of C. altissima consisted mainly in cell enlargement of the pericarp, thickening of cell walls of subendocarpic mesocarp, and formation of the abscission zone.…”

Section: Discussionmentioning

confidence: 99%

Morphological and anatomical features of the flowers and fruits during the development of Chamissoa altissima (Jacq.) Kunth (Amaranthaceae)

Oyama

Souza

Muneratto

et al. 2010

Braz. arch. biol. technol.

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Section: Discussionmentioning

confidence: 99%

Morphological and anatomical features of the flowers and fruits during the development of Chamissoa altissima (Jacq.) Kunth (Amaranthaceae)

Oyama

Souza

Muneratto

et al. 2010

Braz. arch. biol. technol.

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“…Its main pollinators include flies of the Muscidae and Fanniidae families which are attracted by the characteristic unpleasant odor of their flowers (Pombal and Morellato, 2000;Souza et al, 2008). Outcrossing species and particularly tree species exhibit the highest genetic diversity within their populations (Hamrick, 1990).…”

Section: Genetic Structurementioning

confidence: 99%

“…We examined the species Metrodorea nigra A. St.-Hill, a perennial tree of the Rutaceae family, which is frequently found in the Brazilian submontane semideciduous forests from the state of Paraná to Bahia (Souza et al, 2004). Many characteristics of this species, such as anatomy and morphology (Souza et al, 2004(Souza et al, , 2008, floral biology, phenology, breeding systems, and flower visitors (Pombal and Morellato, 2000), have been extensively studied. Small brownish violet or dark purple flowers with an unpleasant smell are observed between August and November depending on the region (Pombal and Souza et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Fragmentation effects and genetic diversity of the key semidecidual forest species Metrodorea nigra in Southwestern Brazil

Filho¹,

Bonifácio-Anacleto²,

Alzate-Marin³

2015

Genet. Mol. Res.

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ABSTRACT. Studies of genetic diversity in plant species present in the remaining fragments of the Atlantic Forest are very important for understanding their resilience to such a degraded ecosystem. We analyzed the genetic diversity of 3 populations of the high-density understory species Metrodorea nigra St. Hill. (Rutaceae) located in forest remnants in the region of Ribeirão Preto, SP, Brazil (M13-Rib, BSQ-Rib, and FACCrav), by using simple sequence repeat (SSR) and inter-simple sequence repeat (ISSR) molecular markers for conservation purposes. A total of 133 polymorphic loci were observed in 136 inter-simple sequence repeat loci (average of 17 per primer). The Nei genetic diversity (H E ) was relatively high considering all populations (0.31). The BSQ-Rib population exhibited the highest value (0.27), followed by the M13-Rib (0.26) and FAC-Crav (0.24) populations. The simple sequence repeat markers analyzed showed a high number of alleles (K = 104), with an average of 14.85 alleles per locus. The average observed heterozygosity was 0.516 and the average expected heterozygosity was 0.771, ranging from 0.688 (FAC-Crav) to 0.765 (BSQ-Rib). The fixation indexes showed positive and significant differences from zero for all sample sets, indicating inbreeding, which may have resulted from the species' mating patterns and the barochoric seed dispersal system of M. nigra. Both markers indicated differentiation among populations, with higher values observed for inter-simple sequence repeat markers. No significant differences between juvenile and adult generations in any of the fragments were observed, indicating the resilience of M. nigra to the effects of fragmentation and reduced habitat.

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“…St.-Hil., commonly known as "chupa-ferro", "carrapateira" or "caputuna preta", is a small perennial tree (4-6 m in height) of the Rutaceae family, frequently found in the submontane of Brazilian ombrophilous dense and semideciduous forests from the State of Paraná to Bahia (Souza et al, 2004) and south of Piauí (Pirani and Skorupa, 2002). The anatomical and morphological characteristics (Souza et al, 2004(Souza et al, , 2008, phenology, floral biology, breeding systems, and flower visitors of this species (Pombal and Morellato, 2000) have been extensively studied. Small brownish violet or dark purple flowers, with a faint smell of rotting flesh (personal annotation), are observed between August and November depending on the region (Pombal and Morellato, 2000;Souza et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity of Metrodorea nigra (Rutaceae) from a small forest remnant in Brazil assessed with microsatellite markers

Guidugli¹,

Ferreira-Ramos²,

Sousa³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. Metrodorea nigra (Rutaceae) is an endemic Brazilian tree of great ecological importance, frequently found in the submontane regions of ombrophilous dense and semideciduous forests. This tree is useful for reforesting degraded areas and the wood can be employed in construction. We developed 12 microsatellite markers from a genomic library enriched for GA/CA repeats, for this species. Polymorphisms were assessed in 40 trees of a highly fragmented population found in Cravinhos, State of São Paulo, in southeastern Brazil. Among the 12 loci, 8 were polymorphic and only one had fixed alleles in this population. The number of alleles per locus and expected heterozygosity ranged from 2 to 11 and from 0.190 to 0.889, respectively. These results revealed mod- Microsatellite markers for Metrodorea nigra erate levels of genetic variation in M. nigra population when compared to other tropical species. Additionally, transferability of the 12 primers was tested in seven other Brazilian Rutaceae tree species (endemics: M. stipularis, Galipea jasminiflora, Esenbeckia leiocarpa and non-endemics: E. febrifuga, E. grandiflora, Balfourodendron riedelianum, Zanthoxylum riedelianum). Transferability ranged among species, but at least 8 loci (~67%) amplified in M. stipularis, demonstrating a high potential for transferring microsatellite markers between species of the same genus in the Rutaceae family.

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Anatomy of the developing fruit of Metrodorea nigra A. St.-Hil. (Rutaceae)

Abstract: The pericarp and seed in development of

Cited by 10 publications

References 9 publications

Morphological and anatomical features of the flowers and fruits during the development of Chamissoa altissima (Jacq.) Kunth (Amaranthaceae)

Morphological and anatomical features of the flowers and fruits during the development of Chamissoa altissima (Jacq.) Kunth (Amaranthaceae)

Fragmentation effects and genetic diversity of the key semidecidual forest species Metrodorea nigra in Southwestern Brazil

Genetic diversity of Metrodorea nigra (Rutaceae) from a small forest remnant in Brazil assessed with microsatellite markers

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