The biogeography of plant reproduction: potential determinants of species’ range sizes

Lowry, Eva Lillian; Lester, Sarah E.

doi:10.1111/j.1365-2699.2006.01562.x

Cited by 113 publications

(142 citation statements)

References 72 publications

Supporting

Mentioning

129

Contrasting

Order By: Relevance

“…For example, latitudinal analyses of polyploidy are biased towards floras of Europe and North America; much less cytogeographical work has been done in the tropics or in temperate regions of the Southern Hemisphere [69]. Building on knowledge of species distributions and evolutionary relationships among genera and families, more explicit testing of the incidence of polyploids is now possible [73][74][75][76]. For example, a phylogenetically explicit analysis of the genus Clarkia found that polyploids on average have fivefold greater range sizes (area in km 2 ) than diploids [75].…”

Section: The Cytogenetics Era (1930s-1960s)mentioning

confidence: 99%

“…Building on knowledge of species distributions and evolutionary relationships among genera and families, more explicit testing of the incidence of polyploids is now possible [73][74][75][76]. For example, a phylogenetically explicit analysis of the genus Clarkia found that polyploids on average have fivefold greater range sizes (area in km 2 ) than diploids [75]. On the other hand, a broad-scale analysis of the North American flora revealed differences in the size and latitude of species' ranges based on phylogenetic history but not ploidy [76].…”

Section: The Cytogenetics Era (1930s-1960s)mentioning

confidence: 99%

“…It may never be possible to fully untangle the functional, historical, phylogenetic and environmental factors that were associated with polyploidy by classical botanical research, but much more comprehensive efforts may now be attempted. Phylogenetic relationships within polyploid species complexes provide the foundation for these efforts, coupled with improved knowledge about cytotype spatial distributions and biological characteristics [73][74][75][76]237,250]. Arguably the biggest limitation to recent studies is the focus on small numbers of factors-geographical range size being the most popular choice for analysis-which makes it difficult to tease apart direct and indirect relationships among variables.…”

Section: Long-standing Questions About Polyploid Ecology and Their Fumentioning

confidence: 99%

See 2 more Smart Citations

Ecological studies of polyploidy in the 100 years following its discovery

Ramsey

2014

Phil. Trans. R. Soc. B

249

237

View full text Add to dashboard Cite

Polyploidy is a mutation with profound phenotypic consequences and thus hypothesized to have transformative effects in plant ecology. This is most often considered in the context of geographical and environmental distributions—as achieved from divergence of physiological and life-history traits—but may also include species interactions and biological invasion. This paper presents a historical overview of hypotheses and empirical data regarding the ecology of polyploids. Early researchers of polyploidy (1910s–1930s) were geneticists by training but nonetheless savvy to its phenotypic effects, and speculated on the importance of genome duplication to adaptation and crop improvement. Cytogenetic studies in the 1930s–1950s indicated that polyploids are larger (sturdier foliage, thicker stems and taller stature) than diploids while cytogeographic surveys suggested that polyploids and diploids have allopatric or parapatric distributions. Although autopolyploidy was initially regarded as common, influential writings by North American botanists in the 1940s and 1950s argued for the principle role of allopolyploidy; according to this view, genome duplication was significant for providing a broader canvas for hybridization rather than for its phenotypic effects per se . The emphasis on allopolyploidy had a chilling effect on nascent ecological work, in part due to taxonomic challenges posed by interspecific hybridization. Nonetheless, biosystematic efforts over the next few decades (1950s–1970s) laid the foundation for ecological research by documenting cytotype distributions and identifying phenotypic correlates of polyploidy. Rigorous investigation of polyploid ecology was achieved in the 1980s and 1990s by population biologists who leveraged flow cytometry for comparative work in autopolyploid complexes. These efforts revealed multi-faceted ecological and phenotypic differences, some of which may be direct consequences of genome duplication. Several classical hypotheses about the ecology of polyploids remain untested, however, and allopolyploidy—regarded by most botanists as the primary mode of genome duplication—is largely unstudied in an ecological context.

show abstract

Section: The Cytogenetics Era (1930s-1960s)mentioning

confidence: 99%

Section: The Cytogenetics Era (1930s-1960s)mentioning

confidence: 99%

Section: Long-standing Questions About Polyploid Ecology and Their Fumentioning

confidence: 99%

See 1 more Smart Citation

Ecological studies of polyploidy in the 100 years following its discovery

Ramsey

2014

Phil. Trans. R. Soc. B

249

237

View full text Add to dashboard Cite

show abstract

“…Numerous contending theories and results regarding polyploid distributions have filled botanical, ecological and evolutionary journals for decades [2,3,7,[114][115][116]. However, the classic, pioneering work of Clausen et al [117] epitomized the variety and array of ecogeographic diversity that can arise from whole-genome duplication.…”

Section: (G) Novel Niches and Geographical Distributionsmentioning

confidence: 99%

Polyploidy and novelty: Gottlieb's legacy

Soltis

Liu

Marchant

et al. 2014

Phil. Trans. R. Soc. B

156

140

View full text Add to dashboard Cite

Nearly four decades ago, Roose & Gottlieb (Roose & Gottlieb 1976 Evolution 30 , 818–830. ( doi:10.2307/2407821 )) showed that the recently derived allotetraploids Tragopogon mirus and T. miscellus combined the allozyme profiles of their diploid parents ( T. dubius and T. porrifolius , and T. dubius and T. pratensis , respectively). This classic paper addressed the link between genotype and biochemical phenotype and documented enzyme additivity in allopolyploids. Perhaps more important than their model of additivity, however, was their demonstration of novelty at the biochemical level. Enzyme multiplicity—the production of novel enzyme forms in the allopolyploids—can provide an extensive array of polymorphism for a polyploid individual and may explain, for example, the expanded ranges of polyploids relative to their diploid progenitors. In this paper, we extend the concept of evolutionary novelty in allopolyploids to a range of genetic and ecological features. We observe that the dynamic nature of polyploid genomes—with alterations in gene content, gene number, gene arrangement, gene expression and transposon activity—may generate sufficient novelty that every individual in a polyploid population or species may be unique. Whereas certain combinations of these features will undoubtedly be maladaptive, some unique combinations of newly generated variation may provide tremendous evolutionary potential and adaptive capabilities.

show abstract

“…Studies of polyploidy very often focus on the features of polyploids that might explain their evolutionary success by genetic and phenotypic superiority (e.g., Ronfort, 1999;Otto and Whitton, 2000;Soltis and Soltis, 2000;Levin, 2002;Wang et al, 2006;Otto, 2007;te Beest et al, 2012) and features more directly related to competition and invasiveness (Lowry and Lester, 2006;Pandit, 2006;HullSanders et al, 2009;Treier et al, 2009;Mráz et al, 2011a,b;Pandit et al, 2011;te Beest et al, 2012;Góralski et al, 2014). For decades there has also been an ongoing search for the relationship between chromosome number and life form, which may also be related to evolutionary success.…”

Section: Introductionmentioning

confidence: 99%

Chromosome Numbers and Polyploidy in Life Forms of Asteraceae, Poaceae and Rosaceae in Polish Flora

Góralski¹,

Bal²,

Gacek³

et al. 2014

Acta Biologica Cracoviensia S. Botanica

View full text Add to dashboard Cite

The chromosome numbers and frequency of polyploids were compared in life forms of Asteraceae, Poaceae and Rosaceae. Both parameters were higher in Poaceae and Rosaceae than in Asteraceae. Among the life forms, longlived plants including perennials and woody plants (shrubs and trees) generally had higher chromosome numbers and consequently polyploid frequencies than short-lived species (annuals and biennials). The families surveyed have different frequencies of life forms. Asteraceae and Rosaceae are both dicots, but the life forms in Asteraceae are more similar to Poaceae than to Rosaceae. To separate the influence of life form, in a series of tests we compared life forms from the same families. These results also showed that long-lived forms generally have more chromosomes than short-lived ones.K Ke ey y w wo or rd ds s: : Chromosome numbers, polyploidy, life forms, plants, evolution, Asteraceae, Rosaceae, Poaceae, threshold method, x method.

show abstract

The biogeography of plant reproduction: potential determinants of species’ range sizes

Cited by 113 publications

References 72 publications

Ecological studies of polyploidy in the 100 years following its discovery

Ecological studies of polyploidy in the 100 years following its discovery

Polyploidy and novelty: Gottlieb's legacy

Chromosome Numbers and Polyploidy in Life Forms of Asteraceae, Poaceae and Rosaceae in Polish Flora

Contact Info

Product

Resources

About