Female and male fitness consequences of clonal growth in a dwarf bamboo population with a high degree of clonal intermingling

Matsuo, Ayumi; Tomimatsu, Hiroshi; Suzuki, Jun; Saitoh, Tomoyuki; Shibata, Shozo; Makita, Akifumi; Suyama, Yoshihisa

doi:10.1093/aob/mcu176

Cited by 21 publications

(26 citation statements)

References 46 publications

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“…They concluded that pollen dispersal distances were sufficiently high to mitigate local mate scarcity despite extensive clonal growth. By contrast, however, clonal intermingling has been shown to be associated with reduced mating costs of clonal expansion in other plants (7,38). Therefore, whether the two exceptions mentioned above really are exceptions to the pattern we predict here or more generally reflect mating patterns in clonal plants will be revealed as more studies of the mating patterns of clonal plants are conducted.…”

Section: Discussionmentioning

confidence: 50%

“…However, a study of a highly intermingled stand of the bamboo Sasa veitchii var. hirsuta showed that selfing rates were independent of genet size (38). On one hand, this might reflect broad pollen dispersal in S. veitchii; under broad dispersal, we expect only a weak association between clone size and selfing rates (Fig.…”

Section: Discussionmentioning

confidence: 83%

“…28). Although siring success was also evaluated in the study of Sasa veitchii, as discussed by Matsuo et al (38), the results are not conclusive because only a spatially restricted subset of the population was evaluated. Studies that contribute to our understanding of how clonal growth trades off against pollen vs. seed production are needed to help clarify the extent to which our assumptions of trade-offs should be modified.…”

Section: Discussionmentioning

confidence: 99%

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Consequences of clonality for sexual fitness: Clonal expansion enhances fitness under spatially restricted dispersal

Drunen

Kleunen

Dorken

2015

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

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Clonality is a pervasive feature of sessile organisms, but this form of asexual reproduction is thought to interfere with sexual fitness via the movement of gametes among the modules that comprise the clone. This within-clone movement of gametes is expected to reduce sexual fitness via mate limitation of male reproductive success and, in some cases, via the production of highly inbred (i.e., self-fertilized) offspring. However, clonality also results in the spatial expansion of the genetic individual (i.e., genet), and this should decrease distances gametes and sexually produced offspring must travel to avoid competing with other gametes and offspring from the same clone. The extent to which any negative effects of clonality on mating success might be offset by the positive effects of spatial expansion is poorly understood. Here, we develop spatially explicit models in which fitness was determined by the success of genets through their male and female sex functions. Our results indicate that clonality serves to increase sexual fitness when it is associated with the outward expansion of the genet. Our models further reveal that the main fitness benefit of clonal expansion might occur through the dispersal of offspring over a wider area compared with nonclonal phenotypes. We conclude that, instead of interfering with sexual reproduction, clonal expansion should often serve to enhance sexual fitness.asexual reproduction | geitonogamy | genet | modularity | ramet M odular growth, clonality, and hermaphroditism are widespread features of sessile organisms. Sessile organisms might benefit from modularity and the spatial expansion of the individual via enhanced resource capture, and thereby improved growth and survival (1-3). However, growth and survival are only two of the key components of an organism's life history, and the third, reproduction, is the one that is most intimately linked to fitness. Indeed, during reproduction, the growth of a modular hermaphrodite might interfere with its success as a parent. In particular, it has been argued that the production of numerous partially or fully autonomous clonal modules (i.e., ramets) should interfere with mating success because there is a nonzero chance that sperm (or pollen) will encounter the receptive tissues associated with the female function of the same genetic individual (i.e., the genet). All else being equal, the larger the clone, the greater the chance that this kind of mating interference should occur (4, 5). The negative effects of such intraclonal mating is expected to occur through reductions in the number of offspring sired on other genets (i.e., outcross siring success, corresponding with the fitness of individuals via their male function) and, in self-compatible organisms, through inbreeding depression (i.e., a reduction in offspring fitness, with negative effects on the fitness of individuals through their female function; e.g., ref. 5). However, these forms of mating interference are simply by-products of attaining a larger size and are not exclusiv...

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Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 83%

Section: Discussionmentioning

confidence: 99%

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Consequences of clonality for sexual fitness: Clonal expansion enhances fitness under spatially restricted dispersal

Drunen

Kleunen

Dorken

2015

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

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“…Sexdependent pattern in clonal plants has been revealed also for mortality (Allen and Antos 1993) and reproductive success (Matsuo et al 2014). No doubt all of these life-history traits may have an impact on population dynamics and demography which are closely related with fine-scale SGS.…”

Section: Communicated By P Ingvarssonmentioning

confidence: 96%

Sex-specific pattern of spatial genetic structure in dioecious and clonal tree species, Populus alba L.

Dering

Rączka

Szmyt

2016

Tree Genetics & Genomes

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Fine-scale spatial genetic structure (SGS) has profound ecological and genetic consequences for plant populations, and some studies indicate that clonal reproduction may significantly enhance SGS. Clonality is widespread among dioecious species, but little is known about the relationship between clonal reproduction and SGS in the frame of sexual dimorphism. We asked the following questions: (1) Is there a sexually dependent pattern of SGS in white poplar population? (2) What is the relationship between clonal reproduction and SGS? and (3) Does this relationship have a sex-specific component? Using 16 microsatellite markers, genetic structure including fine-scale SGS and clonality of females and males of white poplar were investigated. Significant SGS was noted for both sexes at the ramet and genet levels. At the genet level, males had 2.7-fold higher SGS than that of females. Clonality significantly contributed to SGS only in females. A sibship structure revealed with pedigree analysis and clustering-based methods among males was likely the major factor of the observed SGS. The sexes differed in their clonal growth strategies. Spatial positioning of ramets in female clones suggested foraging behavior and/or avoidance of competition, while for male clones it indicated more expansion and space colonization. The obtained results led us to conclude that sexual dimorphism in life history traits may affect the course and rate of demo-genetic processes acting in natural populations of dioecious species. To our knowledge, this is the first study demonstrating a sex-specific pattern of SGS in natural populations of dioecious species.

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“…Similarly to other monocarpic, monopodial genera of Bambuseae Shibata, 2012, 2014;Matsuo et al, 2014) Phyllostachys are monocarpic, and reproduce mainly vegetatively (Isagi et al, 2016) from nodal shoots developing from the underground rhizome system (Ito et al, 2015) which comprises 39-57 % of the total biomass (Umemura and Takenaka, 2014). Phyllostachys edulis (syn.…”

Section: Review Of Literaturementioning

confidence: 99%

The Effect of Water Availability on Shoot and Culm Properties of a Developing Phyllostachys Iridescens Grove

Neményi¹

2017

Appl Ecol Env Res

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Neményi et al. : The effect of water availability on shoot and culm properties of a developing Abstract. A three year experiment was carried out on sandy soil with a vegetatively propagated single clone of Phyllostachys iridescens in Gödöllő, Hungary to investigate the effect of water availability on the number of developing and aborted shoots and the number, diameter and height of culms in a newly planted grove. Part of the experimental plot was provided with drip irrigation and irrigated 3 times a week during the vegetation period from April until the end of October in all years. The first experimental year (2010) was a moist year, while during the second (2011) and third year (2012) there was drought during spring and summer. The number of shoots that developed into culms did not significantly increase over the years in unirrigated control plants, while in irrigated plants there was a three to four fold increase in culm recruitment compared to initial values. There was no significant difference between treatments in culm diameter and culm height during the first two experimental years. However, there was a five fold significant difference in these parameters in the last year. We found a strong (R 2 =0.90, P=0.001) correlation between culm diameter and culm height. Our results prove that water supply during the growing season is of vital importance to developing temperate bamboos.

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Female and male fitness consequences of clonal growth in a dwarf bamboo population with a high degree of clonal intermingling

Cited by 21 publications

References 46 publications

Consequences of clonality for sexual fitness: Clonal expansion enhances fitness under spatially restricted dispersal

Consequences of clonality for sexual fitness: Clonal expansion enhances fitness under spatially restricted dispersal

Sex-specific pattern of spatial genetic structure in dioecious and clonal tree species, Populus alba L.

The Effect of Water Availability on Shoot and Culm Properties of a Developing Phyllostachys Iridescens Grove

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