Latitudinal population differentiation in phenology, life history and flower morphology in the perennial herb <i>Lythrum salicaria</i>

Olsson, Katarina; Ågren, Jon

doi:10.1046/j.1420-9101.2002.00457.x

Cited by 322 publications

(223 citation statements)

References 47 publications

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“…Plants in early flowering selection lines not only flowered earlier but were also smaller with smaller display sizes than those in late flowering lines, a group of traits often found in plants with a shorter lifespan (Olsson and Agren, 2002;Kollmann and Bañ uelos, 2004;Griffith and Watson, 2005). Some taxa that share these traits also have smaller flowers and produce fewer seeds per fruit, like the early flowering selection lines (Dole, 1992).…”

Section: Ks Burgess Et Almentioning

confidence: 99%

Artificial selection shifts flowering phenology and other correlated traits in an autotetraploid herb

2007

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There is mounting evidence that plants are responding to anthropogenic climate change with shifts in flowering phenologies. We conducted a three-generation artificial selection experiment on flowering time in Campanulastrum americanum, an autotetraploid herb, to determine the potential for adaptive evolution of this trait as well as possible costs associated with enhanced or delayed flowering. Divergent selection for earlier and later flowering resulted in a 25-day difference in flowering time. Experiment-wide heritability was 0.31 and 0.23 for the initiation of flowering in early and late lines, respectively. Selection for earlier flowering resulted in significant correlated responses in other traits including smaller size, fewer branches, smaller floral displays, longer fruit maturation times, fewer seeds per fruit and slower seed germination. Results suggest that although flowering time shows the potential to adapt to a changing climate, phenological shifts may be associated with reduced plant fitness possibly hindering evolutionary change.

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Section: Ks Burgess Et Almentioning

confidence: 99%

Artificial selection shifts flowering phenology and other correlated traits in an autotetraploid herb

2007

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“…We do not single out PEP725 because of any specific critique or criticism; rather, we draw from this database as an example of a network widely used and cited in global change analyses (see previous references). We focus our analysis on two major axes which have been shown to affect spring phenological sensitivities to temperature: the growing season (for example, Menzel and others 2006;Sherry and others 2007) and climate space (for example, Olsson and Å gren 2002;Rö tzer and Chmielewski 2001). Specifically, we compare the sensitivity of species level first flowering (FFD) and leafing (FLD) dates in each database to spring warming (1) across the growing season and (2) across spatial climate gradients.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity of Spring Phenology to Warming Across Temporal and Spatial Climate Gradients in Two Independent Databases

et al. 2012

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Disparate ecological datasets are often organized into databases post hoc and then analyzed and interpreted in ways that may diverge from the purposes of the original data collections. Few studies, however, have attempted to quantify how biases inherent in these data (for example, species richness, replication, climate) affect their suitability for addressing broad scientific questions, especially in under-represented systems (for example, deserts, tropical forests) and wild communities. Here, we quantitatively compare the sensitivity of species first flowering and leafing dates to spring warmth in two phenological databases from the Northern Hemisphere. One-PEP725-has high replication within and across sites, but has low species diver- Author Contributions: All authors contributed to the study design and offered comments on this manuscript as part of the ''Forecasting Phenology'' working group funded by the National Center for Ecological Analysis and Synthesis. Author Cook conceived of and designed the study, analyzed the data, and wrote the paper. Wolkovich and Davies contributed significantly to the refinement of the ideas and analyses and assisted with the writing. Ault contributed significantly to the analyses, including processing of the GHCN climate data. Betancourt contributed significantly to the writing and study design. The first five authors are listed in order of their contributions; all other authors are listed alphabetically.*Corresponding author; e-mail: benjamin.i.cook@nasa.gov Ecosystems DOI: 10.1007/s10021-012-9584-5 Ó 2012 Springer Science+Business Media, LLC (outside the USA) sity and spans a limited climate gradient. The other-NECTAR-includes many more species and a wider range of climates, but has fewer sites and low replication of species across sites. PEP725, despite low species diversity and relatively low seasonality, accurately captures the magnitude and seasonality of warming responses at climatically similar NECTAR sites, with most species showing earlier phenological events in response to warming. In NECTAR, the prevalence of temperature responders significantly declines with increasing mean annual temperature, a pattern that cannot be detected across the limited climate gradient spanned by the PEP725 flowering and leafing data. Our results showcase broad areas of agreement between the two databases, despite significant differences in species richness and geographic coverage, while also noting areas where including data across broader climate gradients may provide added value. Such comparisons help to identify gaps in our observations and knowledge base that can be addressed by ongoing monitoring and research efforts. Resolving these issues will be critical for improving predictions in understudied and undersampled systems outside of the temperature seasonal mid-latitudes.

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“…The variation in ecophysiological traits of natural plants often shows more or less a geographically gradient pattern along latitude and altitude, such as in Populus tremula (Hall et al, 2007) and Lythrum salicaria (Olsson and Agren, 2002). Due to the relatively limited mobile ability of plants, such a gradient has developed as a result of the combination of natural selection under different climates and restricted gene flow among populations (Judd et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Variation of Dormancy and Early Flowering Ability in Lilium longiflorum and L. formosanum Populations in the Ryukyu Archipelago and Taiwan

Mojtahedi

Masuda

Hiramatsu

et al. 2013

J. Japan. Soc. Hort. Sci.

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Variations in the dormancy and early flowering ability of seedlings of four populations of Lilium longiflorum, Yaku Shima (LYA), Kikai Jima (LKI), and Ishigaki Jima (LIS) in the Ryukyu Archipelago, Japan and Pitouchiao (LPI), Taiwan, and two populations of L. formosanum, Wulai (FWU), Taiwan and a domesticated Fukuoka population (FFU), Japan were investigated. Seedlings of each population were grown at 15°C for five months. They were then transplanted into an experimental open field for two years or at 15, 20, 25, and 30°C under natural day length for 22 weeks. In the field experiments, FWU, FFU, and LPI populations continued to develop new leaves even at >30°C. Flowering percentage for FFU and LPI was 90% and 19.7%, respectively. Leaf development of LIS, LKI, and LYA was completely arrested from early June in both years, and the flowering percentages were 28, 25, and, 10 in the second year, respectively. Under controlled temperature conditions, LKI and LYA populations produced new leaves only at 15°C. FFU and LPI continued growing at 25 and 30°C, whereas the other populations did not grow. FFU significantly produced the heaviest leaves and bulbs and the highest number of scales per bulb at any temperature. The results showed that high temperature induces bulb dormancy in northern L. longiflorum. Strong correlation with the early flowering ability and bulb dormancy was also found. It seems that the early flowering ability of L. formosanum is largely dependent on the lack or reduction of bulb dormancy after adaptation to the local southern climate. The latitudinal variation of this trait demonstrated the geographic gradient during species habituation in the Ryukyu Archipelago.

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Latitudinal population differentiation in phenology, life history and flower morphology in the perennial herb Lythrum salicaria

Cited by 322 publications

References 47 publications

Artificial selection shifts flowering phenology and other correlated traits in an autotetraploid herb

Artificial selection shifts flowering phenology and other correlated traits in an autotetraploid herb

Sensitivity of Spring Phenology to Warming Across Temporal and Spatial Climate Gradients in Two Independent Databases

Variation of Dormancy and Early Flowering Ability in Lilium longiflorum and L. formosanum Populations in the Ryukyu Archipelago and Taiwan

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