Sexual differences in physiological integration in the dioecious shrub Lindera triloba: a field experiment using girdling manipulation

Isogimi, Tomohiro; Matsushita, Michinari; Yoichi, Watanabe; Nakagawa, Michiko

doi:10.1093/aob/mcr043

Cited by 21 publications

(11 citation statements)

References 44 publications

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“…In dioecious and clonal species, females and males may differ in clonal traits such as clonal architecture (Fujitaka and Sakai 2007), genet size (Petzold et al 2013), ramet production (Matsushita and Tomaru 2012), clonal growth strategy (McLetchie and Puterbaugh 2000), and physiological integrity with the main ramet (Isogimi et al 2011). Sexdependent pattern in clonal plants has been revealed also for mortality (Allen and Antos 1993) and reproductive success (Matsuo et al 2014).…”

Section: Communicated By P Ingvarssonmentioning

confidence: 99%

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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Section: Communicated By P Ingvarssonmentioning

confidence: 99%

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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“…One explanation is that the ramets within a genet do not all perform the same function, and costs incurred at the ramet level may not additively affect genet fitness (Vallejo‐Marin et al. , 2010; Isogimi et al. , 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Why might trade-offs apparent at the ramet level not scale up to the genet level? One explanation is that the ramets within a genet do not all perform the same function, and costs incurred at the ramet level may not additively affect genet fitness (Vallejo-Marin et al, 2010;Isogimi et al, 2011). It is common for only a few ramets to be reproductive at once, and the cost of reproduction at the genet level might be compensated through the reallocation of resources within the genet (Mendoza & Franco, 1998;Thiele et al, 2009; and see Bañuelos & Obeso, 2004).…”

Section: Introductionmentioning

confidence: 99%

Trade‐offs between clonal and sexual reproduction in Sagittaria latifolia (Alismataceae) scale up to affect the fitness of entire clones

Drunen

Dorken

2012

New Phytologist

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Summary• Many plants combine sexual reproduction with vegetative propagation, but how trade-offs between these reproductive modes affect fitness is poorly understood. Although such trade-offs have been demonstrated at the level of individual shoots (ramets), there is little evidence that they scale up to affect genet fitness. For hermaphrodites, reproductive investment is further divided between female and male sexual functions. Female function should generally incur greater carbon costs than male function, which might involve greater nitrogen (N) costs.• Using a common garden experiment with diclinous, clonal Sagittaria latifolia we manipulated investment in reproduction through female and male sex functions of 412 plants from monoecious and dioecious populations.• We detected a 1 : 1 trade-off between biomass investment in female function and clonal reproduction. For male function, there was no apparent trade-off between clonal and sexual reproduction in terms of biomass investment. Instead, male function incurred a substantially higher N cost.• Our results indicate that: trade-offs between investment in clonal propagation and sexual reproduction occur at the genet level in S. latifolia; and sexual reproduction interferes with clonal expansion, with investment in female function limiting the quantity of clonal propagules produced, and investment in male function limiting the nutrient content of clonal propagules.

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“…If the accelerating effects on pollen release of high March Tmin are not mirrored by similar effects on female flower development, then pollen dispersal may occur too early to ensure successful pollination. Given that the genders of many dioecious species differ physiologically (Dudley and Galen 2007, Isogimi et al 2011, Alvarez-Cansino et al 2012, Montesinos et al 2012, Chen et al 2014, Cruz Diaz-Barradas et al 2014, gender-specific phenological responses to climate change may be common and represent a type of phenological disruption that merits further investigation.…”

Section: Discussionmentioning

confidence: 99%

Species‐specific phenological responses to winter temperature and precipitation in a water‐limited ecosystem

et al. 2015

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Abstract. Phenology is the study of seasonal biological events such as flowering, leaf-out, insect emergence, and animal migration. Long-term observational studies at numerous temperate zone sites have found that the timing of phenological events responds to temporal variation in climate. To assess the phenological effects of climatic variation on California's flora, The California Phenology Project (CPP) was established in 2010 to develop and to test monitoring protocols and to create tools to support long-term phenological monitoring and education in several California national parks. The CPP uses standardized protocols developed in collaboration with the USA National Phenology Network (USA-NPN) to track the phenological status of 30 plant species across key environmental gradients (e.g., latitude, elevation, and precipitation). To date, over 860K phenological records collected by trained citizen scientists, natural resource managers, and park interns participating in the CPP have been contributed to the National Phenology Database. Observations recorded up to twice per week during the first 40 months of monitoring by the CPP were of sufficiently high resolution to detect associations between local climatic conditions and the onset of targeted phenophases. Here, we present analyses of four of the most intensively-monitored species: Baccharis pilularis (Asteraceae), Quercus lobata (Fagaceae), Sambucus nigra (Caprifoliaceae), and Eriogonum fasciculatum (Polygonaceae). We examined the effects of monthly climate parameters during a four month window (December to March), including mean minimum temperatures (Tmin), total monthly precipitation, and their interactions, on the onset dates of four phenophases per species. Stepwise regressions explained a high proportion (30-99%) of the variation in the onset date of each phenophase. Species and phenophases differed, however, with respect to the strength and the direction of the relationship between each month's conditions (Tmin and/or precipitation) and the timing of vegetative and reproductive phenophases. Given the high climatic variation represented among the monitored sites and among years (2011)(2012)(2013), it was possible to detect significant associations between local, recent winter conditions and the onset dates of subsequent phenophases, although interactions between monthly conditions were also common. These patterns permit preliminary predictions regarding how these species will respond to future winter warming and intensifying drought.

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Sexual differences in physiological integration in the dioecious shrub Lindera triloba: a field experiment using girdling manipulation

Cited by 21 publications

References 44 publications

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

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

Trade‐offs between clonal and sexual reproduction in Sagittaria latifolia (Alismataceae) scale up to affect the fitness of entire clones

Species‐specific phenological responses to winter temperature and precipitation in a water‐limited ecosystem

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