Systematic and Evolutionary Implications of rbcL Sequence Variation in Rosaceae

Morgan, David R.; Soltis, Douglas E.; Robertson, Kirsty

doi:10.2307/2445770

Cited by 140 publications

(141 citation statements)

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“…The inclusion of Vauquelinia, Kageneckia and several other Spiraeoideae in subfam. Maloideae was previously recommended by Goldblatt (1976), Morgan et al (1994) and Takhtajan (1997), and the discovery of a fossil closely related to both groups, Paleorosa similkameensis, served to avail this idea (Basinger, 1976;Evans & Campbell, 2002). Also the studies by Evans & dickinson (1999) about floral anatomy of Spiraeoideae showed characters, such as the ovules with a papillate funicular obturator, and the development of the gynoecium from a ring primordium, which support the inclusion of these genera in an expanded subfam.…”

Section: Phylogenetic Relationshipsmentioning

confidence: 85%

“…Phipps et al (1991) considered Vauquelinia as "typically spiraeoid except in number and winged seeds". other authors preferred to include Vauquelinia and Kageneckia in Maloideae (Goldblatt, 1976;Morgan et al, 1994;Takhtajan, 1997).…”

Section: Methodsmentioning

confidence: 99%

“…Sax (1931) proposed an alloploid event to explain their origin, with a Spiroideae ancestor (x = 9) and a Prunoideae ancestor (x = 8), which is supported by some anatomical and cytogenetic data (Stebbins, 1950;Challice & Kovanda, 1981). Nevertheless, neither DNA nor wood anatomy data did easily support this view and they may better suggest that Maloideae descend entirely from Spiroideae ancestors such as Kageneckia or Vauquelinia (Zhang, 1992;Morgan et al, 1994;Campbell et al, 1995;Evans & dickinson, 1999;Evans & Campbell, 2002).…”

Section: Fossil Record and Present Distributionmentioning

confidence: 99%

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Phylogenetic and Phytogeographical Relationships in Maloideae (Rosaceae) Based on Morphological and Anatomical Characters

Aldasoro¹,

Aedo²,

Navarro³

2005

blum - j plant tax and plant geog

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SUMMARYPhylogenetic relationships among 24 genera of Rosaceae subfam. Maloideae and Spiraeoideae are explored by means of a cladistic analysis; 16 morphological and anatomical characters were included in the analysis. Published suprageneric classifications and characters used in these classifications are briefly reviewed. Additionally, some new features are here reported, such as seed shape, presence or absence of endosperm, and number of cell layers in the seed coat and in the endosperm. Parsimony analyses indicate that Eriobotrya and Rhaphiolepis form a well-supported clade that is the sister to the remainder of the subfamily. This result is in agreement with published ITS sequence data. other clades are not supported, with the exception of the group Amelanchier-Peraphyllum-Malacomeles. Results of several studies point toward North America as centre of origin for Maloideae, considering the distribution of closely related Spiraeoideae such as Vauquelinia and Lindleia. A non-metric multidimensional scaling analysis of Takhtajan's biogeographic regions was carried out using presence/ absence of genera as characters. Eastern Asia is a centre of diversity from which the number of shared taxa decreases in several directions. This can be associated with the retreat of many taxa belonging to the Early Tertiary tropical-subtropical flora towards the refuges of China, Indochina and Malaysia, after wet-temperate forests were progressively transformed during the Neogene, which seems to be the case of Eriobotrya and Rhaphiolepis. Finally, Osteomeles and Chamaemeles were postulated as long-distance dispersion events while Hesperomeles could have originated in North America and migrated into north-western South America.

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Section: Phylogenetic Relationshipsmentioning

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Section: Fossil Record and Present Distributionmentioning

confidence: 99%

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Phylogenetic and Phytogeographical Relationships in Maloideae (Rosaceae) Based on Morphological and Anatomical Characters

Aldasoro¹,

Aedo²,

Navarro³

2005

blum - j plant tax and plant geog

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“…We considered four parts of the phylogeny for which branch lengths were readily available. We found that clade rank was always highly correlated to the total length of the branches connecting a taxon to the root of the respective part of the phylogeny (dicot families [Savolainen et al 2000]: n ϭ 96, r ϭ 0.626, P Ͻ 0.0001; Poaceae species [Catalan et al 1997]: n ϭ 20, r ϭ 0.792, P Ͻ 0.0001; Rosaceae species [Morgan et al 1994]: n ϭ 15, r ϭ 0.671, P ϭ 0.006; Apiaceae species [Downie et al 2000]: n ϭ 25, r ϭ 0.563, P ϭ 0.0034). Hence, the bias of clade rank was relatively small.…”

Section: Datamentioning

confidence: 89%

The Relationship Between Global and Regional Distribution Diminishes Among Phylogenetically Basal Species

Prinzing¹,

Ozinga²,

Durka

2004

Evolution

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Abstract. Phylogenetic legacy and phylogenetic trends affect the ecology of species-except, apparently, for the width of their distribution. As a result, ''macroecological'' patterns of species distributions emerge constantly in phylogenetically very distinct species assemblages. The width of the global distribution of species, for instance, constantly correlates positively to the width of their regional distribution. However, such patterns primarily reflect the phylogenetically derived species that dominate most assemblages. Basal species, in contrast, might show different macroecological patterns. We tested the hypothesis that the correlation between global and regional distributions of species diminishes among the phylogenetically basal species. We considered central European higher plants and defined global distribution as the occupancy of global floristic zones, regional distribution as the grid occupancy in Eastern Germany, and phylogenetic position as the rank distance to tree base. We also took into account a number of confounding variables. We found that, across all lineages, the global/regional correlation diminished among basal species. We then reanalyzed 19 lineages separately and always found the same pattern. The pattern reflected both increases in global distributions and decreases in regional distributions among basal species. The results indicate that many basal species face a risk of global or at least regional extinction, but have escaped the downward spiral of mutually reinforcing extinction risks at multiple scales. We suggest that many basal species had much time to expand their global ranges but are presently displaced locally by more derived species. Overall, the study shows that macroecological patterns may not be static and universal, but may undergo macroevolutionary trends. Analyses of macroecological patterns across a phylogeny may thus provide insights into macroevolutionary processes.

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“…However, for most of the families with nitrogen-fixing symbioses the actual genera involved in root nodule symbiosis were not included in the analysis (17). Furthermore, the analysis of 499 rbcL sequences (17) (22), and Betulaceae (Alnus) (21) were also included ( Table 2). As a result, all families of angiosperms (except Ulmaceae) known to host nitrogen-fixing bacteria in root nodules are represented in this analysis by rbcL sequences for genera that truly are hosts.…”

mentioning

confidence: 99%

Chloroplast gene sequence data suggest a single origin of the predisposition for symbiotic nitrogen fixation in angiosperms.

Soltis

Morgan

et al. 1995

Proc. Natl. Acad. Sci. U.S.A.

445

348

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Systematic and Evolutionary Implications of rbcL Sequence Variation in Rosaceae

Cited by 140 publications

References 0 publications

Phylogenetic and Phytogeographical Relationships in Maloideae (Rosaceae) Based on Morphological and Anatomical Characters

Phylogenetic and Phytogeographical Relationships in Maloideae (Rosaceae) Based on Morphological and Anatomical Characters

The Relationship Between Global and Regional Distribution Diminishes Among Phylogenetically Basal Species

Chloroplast gene sequence data suggest a single origin of the predisposition for symbiotic nitrogen fixation in angiosperms.

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