Monophyly and Floral Character Homology of Old World Passiflora (Subgenus Decaloba : Supersection Disemma)

Krosnick, Shawn E.; Freudenstein, John V.

doi:10.1600/0363644053661959

Cited by 45 publications

(59 citation statements)

References 23 publications

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“…Além disso, os acessos que constituíram esse grupo possuem as menores médias para todos os descritores referentes à flor (Tabela 3). Características semelhantes foram encontradas por Krosnick e Freudenstein (2005) ao estudarem a monofilia e a homologia de caracteres florais do subgênero Decaloba. Esses autores verificaram que flores brancas e pequenas são típicas desse subgênero.…”

Section: Resultsunclassified

Diversidade genética de espécies do gênero Passiflora com o uso da estratégia Ward-MLM

et al. 2014

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RESUMO -O uso de espécies silvestres de maracujá tem resultado em progresso no melhoramento genético da cultura. No entanto, o uso dessas tem sido incipiente, devido à existência de poucas informações sobre a diversidade genética disponível. Tais atividades são essenciais para que os recursos genéticos do gênero Passiflora sejam utilizados com sucesso. Este trabalho objetivou quantificar a diversidade genética existente entre onze espécies do gênero Passiflora (Passiflora edulis, P. mucronata, P. setacea, P. pentagona, P. caerulea, P. gibertii, P. cincinnata, P. suberosa, P. micropetala, P. alata e P.coccinea). Foram utilizados descritores morfológicos qualitativos e quantitativos, sendo analisados conjuntamente por meio do procedimento Ward-MLM (Modified Location Model). Os acessos foram reunidos em cinco grandes grupos, sendo os caracteres relacionados às flores os que mais contribuíram para a diversidade genética dos acessos. O método de Ward-MLM possibilitou distinguir os subgêneros analisados, e houve uma clara separação entre as espécies. Vasta diversidade foi encontrada no gênero Passiflora, que pode ser explorada em programas de melhoramento do maracujazeiro. Termos para indexação: caracterização, diversidade, recurso genético, Passiflora, Ward-MLM. GENETIC DIVERSITy OF THE GENUS Passiflora USING THE wARD-MLM STRATEGyABSTRACT -The use of wild species of Passion fruit has resulted in progress in the genetic improvement of this crop. However the use of these species have been incipient, due to little information about the genetic diversity. These activities are essential to genetic resources of the genus Passiflora to be used successfully. This research aimed quantify the genetic variability between eleven species of the genus Passiflora (Passiflora edulis, P. mucronata, P. setacea, P. pentagona, P. caerulea, P. gibertii, P. cincinnata, P. suberosa, P. micropetala, P. alata and P.coccinea). It was used quantitative and qualitative descriptors being analyzed in conjunction by the Ward-MLM procedure (Modified Location Model). This technique identified five groups based on pseudo-F and pseudo-t2 statistics. The characters related with floral part were the main contributors to genetic variability of the accessions. The Ward-MLM statistical procedure made possible the distinction of the subgenera analyzed, and there was a clear separation between the related species. A wide diversity was found in the genus Passiflora, that can be explored in passion fruit tree improvement programs.

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Diversidade genética de espécies do gênero Passiflora com o uso da estratégia Ward-MLM

et al. 2014

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“…The genus exhibits high range of inter-and intra-specific variability [9,30,31]. Earlier researchers had analyzed the genetic diversity in the genus Passiflora using morphological and molecular data [6,16,24,29,30]. Studies on intra-generic relationships are also noticed in Passiflora [6].…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity in two species of Passiflora L. (Passifloraceae) by karyotype and protein profiling

Beena

Beevy

2015

Nucleus

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Karyotype and SDS-PAGE analysis in three accessions each of Passiflora edulis; P. edulis Sims. f. flaviocarpa O.Deg -yellow passion fruit, P.edulis f. edulis -purple passion fruit, and P.edulis 'Panama Red', and in three varieties of the wild species, P. foetida, P.foetida var. foetida, P.foetida var. hispida, and P. foetida var. gossippifolia, were carried out to study the genetic diversity in the species. Analysis of root tip cells revealed the presence of 2n=18 in P.edulis, 2n=16 in P.foetida var. foetida, and 2n=20 in P.foetida var. hispida and P.foetida var. gossippifolia. The somatic chromosome number of two varieties viz, P.foetida var. hispida, and P. foetida var. gossippifolia are reported for the first time. Karyotype analysis and SDS-PAGE protein profiling suggest variations at the intra-as well as interspecific levels in Passiflora. Low TF% i.e., 40 % observed in varieties of P. edulis point to the evolved nature of the cultivated taxa. Unique protein bands in P. foetida (65.66KDa) and P.edulis (17.50KDa) support their interspecific variation. Dendrogram based on UPGMA analysis emphasize the relationships among the taxa.

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“…De Wilde, both of which are distributed throughout Australia, Papua New Guinea, and the Pacific Islands ( de Wilde 1971 ). Within Passiflora, just 21 species are distributed throughout China, India, Southeast Asia, Australia, and the Pacific Islands ( Krosnick and Freudenstein 2005 ). All of these species belong to a single clade, subgenus Decaloba (DC.)…”

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“…supersection Disemma (Labill.) MacDougal & Feuillet. In light of the similar geographical distribution between Adenia, Passiflora supersection Disemma, Hollrungia, and Tetrapathea, Krosnick and Freudenstein (2005) included two species of Adenia, Passiflora "sp. nov.", and Tetrapathea tetrandra in a preliminary phylogenetic analysis of the Old World Passiflora .…”

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Taxonomic Revision of Passiflora Subgenus Tetrapathea Including the Monotypic Genera Hollrungia and Tetrapathea (Passifloraceae), and a New Species of Passiflora

Krosnick¹,

Ford²,

Freudenstein³

2009

Systematic Botany

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Recent phylogenetic analysis of the Old World species of Passiflora has indicated that two monotypic genera in the Passifloraceae, Hollrungia and Tetrapathea, are strongly supported as belonging to the genus Passiflora. Additionally, a new species from Australia was found to belong to the same clade as Hollrungia and Tetrapathea. Consequently, a taxonomic revision is presented here of Passiflora subgenus Tetrapathea including these three taxa. Tetrapathea tetrandra, the type of Passiflora subgenus Tetrapathea and historically recognized as both T. tetrandra and P. tetrandra, is formally accepted here as P. tetrandra. The single species of Hollrungia, H. aurantioides, is transferred to Passiflora subgenus Tetrapathea as P. aurantioides. The new and so far unnamed species in Passiflora subgenus Tetrapathea from Australia is also described as P. kuranda sp. nov.

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Monophyly and Floral Character Homology of Old World Passiflora (Subgenus Decaloba : Supersection Disemma)

Cited by 45 publications

References 23 publications

Diversidade genética de espécies do gênero Passiflora com o uso da estratégia Ward-MLM

Diversidade genética de espécies do gênero Passiflora com o uso da estratégia Ward-MLM

Genetic diversity in two species of Passiflora L. (Passifloraceae) by karyotype and protein profiling

Taxonomic Revision of Passiflora Subgenus Tetrapathea Including the Monotypic Genera Hollrungia and Tetrapathea (Passifloraceae), and a New Species of Passiflora

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