Pollen morphology of <i>Browneopsis</i> (Leguminosae: Caesalpinioideae), and its evolutionary significance

Klitgaard, Bente B.; Ferguson, I. K.

doi:10.1080/00173139209429451

Cited by 16 publications

(3 citation statements)

References 9 publications

(10 reference statements)

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“…The correlation of a verrucate exine with bat-pollination has been previously reported in the subfamilies Papilionoideae (Ferguson and Skvarla, 1982) and Caesalpinoideae (Graham and Barker, 1981;Klitgaard and Ferguson, 1992). Klitgaard and Ferguson (1992) found that pollen of bat-pollinated species ofBrowneopsis consistently had a verrucate exine, whereas pollen of the closely related genus Brownea, which is bird-pollinated, had a reticulate or striate exine. A similar transformation can be seen in Parkia: reticulate exines in entomophilous species and fossulate to verrucate exines in chiropterophilous ones.…”

Section: Discussionsupporting

confidence: 61%

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A Cladistic Analysis of Parkia (Leguminosae: Mimosoideae)

Luckow

Hopkins

1995

American Journal of Botany

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A cladistic analysis of the tropical mimosoid genus Parkia was undertaken to examine relationships among the 31 species and to test the monophyly of the three recognized sections. The implications of the cladogram to the evolution of batpollination and biogeography were also explored. The analysis, based on 52 morphological characters, resulted in 408 most parsimonious trees. A consensus tree supports the monophyly of sections'Parkia and Platyparkia, but section Sphaeroparkia is paraphyletic. The latter section is distinguished by a capitulum of all fertile flowers, a plesiomorphic attribute in this analysis. Characters supporting the monophyly of section Platyparkia include an inflorescence with distal nectar flowers having exserted styles, and fruits with seeds in two rows. Section Parkia is characterized by having sterile basal flowers with nectar flowers just above them, and calyx lobes included in bud. Bat-pollination was mapped onto one of the most parsimonious cladograms to examine the evolution of pollination syndromes within the genus. Our phylogeny is consistent with a single origin of bat-pollination and indicates that entomophilous species of Parkia are basal rather than secondarily derived. Sections Platyparkia and Parkia are separate lineages within the bat-pollinated clade and have independently developed capitulum types adapted to chiropterophily. Characters that are associated with chiropterophily include specialized nectar-producing flowers and basifixed anthers. Several characters, including presence of a staminodial fringe, a nectar ring, and pollen with verrucate sculpturing on the exine, probably represent increasing specialization for bat-pollination. The cladogram supports a South American origin for Parkia but is not consistent with a Gondwanan vicariance event as is usually hypothesized to explain its amphi-Atlantic distribution.

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Section: Discussionsupporting

confidence: 61%

“…Some of the chiropterophilous species in the Caesalpinioideae also have nonuniform sculpturing of the exine (e.g., Klitgaard and Ferguson, 1992, fig. I A, D) and re-duced or absent col pi.…”

Section: Discussionmentioning

confidence: 99%

A Cladistic Analysis of Parkia (Leguminosae: Mimosoideae)

Luckow

Hopkins

1995

American Journal of Botany

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“…Pollen is exposed to the selection pressures with regard to pollination; and so adaptation phenomena can be expected in the zoophilous Calliandra not only in the sporoderm. However, a comparison with attributes which are typical for entomophilous, ornithophilous or chiropterophilous pollen (Inouye, 1975;Klitgaard and Ferguson, 1992;Knox, 1984;Kress et al, 1978;Luckow and Hopkins, 1995;Stone et al, 1979) indicates, that the octads cannot be assigned to any of these types. Starting from the entomophilous A. catechu, the following transformations would be necessary for it to resemble the Calliandra anther: Firstly, a reduction in PMC number is required, leading to a primary reduction of the total pollen grain number.…”

Section: Article In Pressmentioning

confidence: 97%

Ontogeny of the Calliandra – massulae (Mimosaceae: Ingeae), and the associated viscin body

Greissl

2006

Flora - Morphology, Distribution, Functional Ecology of Plants

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A CLADISTIC ANALYSIS OFPARKIA(LEGUMINOSAE: MIMOSOIDEAE)

Luckow

Hopkins

1995

American J of Botany

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A cladistic analysis of the tropical mimosoid genus Parkia was undertaken to examine relationships among the 31 species and to test the monophyly of the three recognized sections. The implications of the cladogram to the evolution of bat‐pollination and biogeography were also explored. The analysis, based on 52 morphological characters, resulted in 408 most parsimonious trees. A consensus tree supports the monophyly of sections Parkia and Platyparkia, but section Sphaeroparkia is paraphyletic. The latter section is distinguished by a capitulum of all fertile flowers, a plesiomorphic attribute in this analysis. Characters supporting the monophyly of section Platyparkia include an inflorescence with distal nectar flowers having exserted styles, and fruits with seeds in two rows. Section Parkia is characterized by having sterile basal flowers with nectar flowers just above them, and calyx lobes included in bud. Bat‐pollination was mapped onto one of the most parsimonious cladograms to examine the evolution of pollination syndromes within the genus. Our phylogeny is consistent with a single origin of bat‐pollination and indicates that entomophilous species of Parkia are basal rather than secondarily derived. Sections Platyparkia and Parkia are separate lineages within the bat‐pollinated clade and have independently developed capitulum types adapted to chiropterophily. Characters that are associated with chiropterophily include specialized nectar‐producing flowers and basifixed anthers. Several characters, including presence of a staminodial fringe, a nectar ring, and pollen with verrucate sculpturing on the exine, probably represent increasing specialization for bat‐pollination. The cladogram supports a South American origin for Parkia but is not consistent with a Gondwanan vicariance event as is usually hypothesized to explain its amphi‐Atlantic distribution.

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Pollen morphology of Browneopsis (Leguminosae: Caesalpinioideae), and its evolutionary significance

Cited by 16 publications

References 9 publications

A Cladistic Analysis of Parkia (Leguminosae: Mimosoideae)

A Cladistic Analysis of Parkia (Leguminosae: Mimosoideae)

Ontogeny of the Calliandra – massulae (Mimosaceae: Ingeae), and the associated viscin body

A CLADISTIC ANALYSIS OFPARKIA(LEGUMINOSAE: MIMOSOIDEAE)

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