Costs of reproduction in life history of a perennial plant Carex secalina

Bogdanowicz, Agnieszka; Olejniczak, Paweł; Lembicz, Marlena; Zukowski, W

doi:10.2478/s11535-011-0044-6

Cited by 9 publications

(5 citation statements)

References 38 publications

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“…Contrary to our results, competition between fruit load and subsequent vegetative development has been reported in apple where heavy fruit load decreases vegetative development ( Jonkers, 1979 ; Forshey and Elfving, 1989 ) and secondary growth ( Lauri et al, 2010 ) in the same year. Similarly, the increase in plant biomass was lower when more reproductive structures were produced in the previous year in Carex secalina , a perennial monoecious species ( Bogdanowicz et al, 2011 ). Moreover, several studies have found that there are less new shoots during years of high fruit production than during years of low fruit production at the tree scale in pistachio ( Weinbaum et al, 1994 ; Brown et al, 1995 ; Rosecrance et al, 1996 ; Picchioni et al, 1997 ).…”

Section: Discussionmentioning

confidence: 99%

Deciphering the Costs of Reproduction in Mango – Vegetative Growth Matters

Capelli¹,

Lauri

Normand³

2016

Front. Plant Sci.

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Irregular fruit production across successive years is a major issue that limits the profitability of most temperate and tropical fruit crops. It is particularly affected by the reciprocal relationships between vegetative and reproductive growth. The concept of the costs of reproduction is defined in terms of losses in the potential future reproductive success caused by current investment in reproduction. This concept, developed in ecology and evolutionary biology, could provide a methodological framework to analyze irregular bearing in fruit crops, especially in relation to the spatial scale at which studies are done. The objective of this study was to investigate the direct effects of reproduction during a growing cycle on reproduction during the following growing cycle and the indirect effects through vegetative growth between these two reproductive events, for four mango cultivars and during two growing cycles. Two spatial scales were considered: the growth unit (GU) and the scaffold branch. Costs of reproduction were detected between two successive reproductive events and between reproduction and vegetative growth. These costs were scale-dependent, generally detected at the GU scale and infrequently at the scaffold branch scale, suggesting partial branch autonomy with respect to processes underlying the effects of reproduction on vegetative growth. In contrast, the relationships between vegetative growth and reproduction were positive at the GU scale and at the scaffold branch scale in most cases, suggesting branch autonomy for the processes, mainly local, underlying flowering and fruiting. The negative effect of reproduction on vegetative growth prevailed over the positive effect of vegetative growth on the subsequent reproduction. The costs of reproduction were also cultivar-dependent. Those revealed at the GU scale were related to the bearing behavior of each cultivar. Our results put forward the crucial role of vegetative growth occurring between two reproductive events. They are discussed in the context of irregular bearing considering both the spatial scale and the various bearing habits of the mango cultivars, in order to formulate new hypotheses about this issue.

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Section: Discussionmentioning

confidence: 99%

Deciphering the Costs of Reproduction in Mango – Vegetative Growth Matters

Capelli¹,

Lauri

Normand³

2016

Front. Plant Sci.

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“…Culm length and leaf width characterize the studied species vegetatively; lateral inflorescence unit length, utricle length and number of utricles per lateral inflorescence unit characterize them reproductively. We interpret lateral inflorescence unit length as a surrogate for the total investment of plants in each inflorescence unit (Bogdanowicz et al. , 2011), and utricle length and number of utricles per inflorescence unit as estimates of the rate of production of propagules per inflorescence unit and their sizes (see r / K strategies in Pianka, 1970).…”

Section: Descriptionmentioning

confidence: 99%

Selection and inertia in the evolution of holocentric chromosomes in sedges (Carex, Cyperaceae)

et al. 2012

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Summary• Changes in chromosome number as a result of fission and fusion in holocentrics have direct and immediate effects on the recombination rate. We investigate the support for the classic hypothesis that environmental stability selects for increased recombination rates.• We employed a phylogenetic and cytogenetic data set from one of the most diverse angiosperm genera in the world, which has the largest nonpolyploid chromosome radiation (Carex, Cyperaceae; 2n = 12-124; 2100 spp.). We evaluated alternative Ornstein-Uhlenbeck models of chromosome number adaptation to the environment in an information-theoretic framework.• We found moderate support for a positive influence of lateral inflorescence unit size on chromosome number, which may be selected in a stable environment in which resources for reproductive investment are larger. We found weak support for a positive influence on chromosome number of water-saturated soils and among-month temperature constancy, which would be expected to be negatively select for pioneering species. Chromosome number showed a strong phylogenetic signal.• We argue that our finding of small but significant effects of life history and ecology is compatible with our original hypothesis regarding selection of optima in recombination rates: low recombination rate is optimal when inmediate fitness is required. By contrast, high recombination rate is optimal when stable environments allow for evolutionary innovation.

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“…The cultivated plants of C. secalina from the described garden experiment were also used as maternal plants in our previous studies to provide seeds for germination experiments (Lembicz et al 2011) and to estimate the costs of reproduction based on total shoot production (Bogdanowicz et al 2011).…”

Section: Garden Experimentsmentioning

confidence: 99%

Sexual lability during an individual's life: the case of the sedge Carex secalina

Bogdanowicz

Lembicz

Zukowski

2019

Nordic Journal of Botany

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Various environmental and physiological factors that affect sex expression in plants have been identified. We made the presumption that in perennials, age may be a key factor that significantly diversifies sex expression over consecutive years of an individual's life. To test this hypothesis, we chose the sedge Carex secalina, a plant that reproduces only sexually and exhibits different sex expression patterns. These patterns had been previously observed in natural populations. In a four‐year experiment, the sex of spikes formed on reproductive tillers of 100 individuals originating from three populations was monitored. A significant association between individuals’ age and number of female/male spikes was found for each population. In addition, significant differences between the populations in the ratio of shoots with bisexual spikes to shoots with unisexual spikes were revealed. We also showed that the proportion of shoots with bisexual spikes in the individual populations changed significantly with the age of an individual and that in the successive years of the individual's life, the production level of female and male structures changed. Moreover, an age‐dependent decrease in both the number and length of female and male spikes was observed.

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Costs of reproduction in life history of a perennial plant Carex secalina

Cited by 9 publications

References 38 publications

Deciphering the Costs of Reproduction in Mango – Vegetative Growth Matters

Deciphering the Costs of Reproduction in Mango – Vegetative Growth Matters

Selection and inertia in the evolution of holocentric chromosomes in sedges (Carex, Cyperaceae)

Sexual lability during an individual's life: the case of the sedge Carex secalina

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