A convergent outcome: small genomes in mangroves

Gaut, Brandon S.

doi:10.1111/nph.14906

Cited by 4 publications

(4 citation statements)

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“…Few studies have investigated how genome size interacts with environmental variation. One recent example of such as study is a survey of mangrove plant communities growing in intertidal regions characterized by high salinity, high temperatures, and saturated soils demonstrated that reduced genome size in mangroves was an adaption to environmental stress (Gaut 2018, Lyu et al 2018). Other recent observational studies have focused on genome size selection within species.…”

Section: Discussionmentioning

confidence: 99%

“…Likewise, the predictable geographic distribution of intraspecific genome sizes in Arabidopsis thaliana suggests that plant genome size is a trait that adapts to local conditions (Long et al 2013). Although plant stress is hypothesized to cause genome rearrangements leading to adaptation (i.e., The Genome Shock Hypothesis; McClintock 1984), Gaut (2018) suggests that the above examples “provide compelling evidence” that genome size shifts in plants are likely adaptive and due to selection on phenotypic traits correlated with genome size. However, whether such selection is a result of constraints against large genomes is not yet known (e.g., Lynch 2007, Gaut 2018).…”

Section: Discussionmentioning

confidence: 99%

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Plant genome size influences stress tolerance of invasive and native plants via plasticity

et al. 2020

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Citation: Meyerson, L. A., P. Py sek, M. Lu canov a, S. Wigginton, C.-T. Tran, and J. T. Cronin. 2020. Plant genome size influences stress tolerance of invasive and native plants via plasticity. Ecosphere 11(5):Abstract. Plant genome size influences the functional relationships between cellular and whole-plant physiology, but we know little about its importance to plant tolerance of environmental stressors and how it contributes to range limits and invasion success. We used native and invasive lineages of a wetland plant to provide the first experimental test of the Large Genome Constraint Hypothesis (LGCH)-that plants with large genomes are less tolerant of environmental stress and less plastic under stress gradients than plants with small genomes. We predicted that populations with larger genomes would have a lower tolerance and less plasticity to a stress gradient than populations with smaller genomes. In replicated experiments in northern and southern climates in the United States, we subjected plants from 35 populations varying in genome size and lineage to two salinity treatments. We measured traits associated with growth, physiology, nutrition, defense, and plasticity. Using AICc model selection, we found all plant traits, except stomatal conductance, were influenced by environmental stressors and genome size. Increasing salinity was stressful to plants and affected most plant traits. Notably, biomass in the high-salinity treatment was 3.0 and 4.9 times lower for the invasive and native lineages, respectively. Plants in the warmer southern greenhouse had higher biomass, stomate density, stomatal conductance, leaf toughness, and lower aboveground percentage of N and total phenolics than in the northern greenhouse. Moreover, responses to the salinity gradient were generally much stronger in the southern than northern greenhouse. Aboveground biomass increased significantly with genome size for the invasive lineage (43% across genome sizes) but not for the native. For 8 of 20 lineage trait comparisons, greenhouse location 9 genome size interaction was also significant. Interestingly, the slope of the relationship between genome size and trait means was in the opposite direction for some traits between the gardens providing mixed support for LGCH. Finally, for 30% of the comparisons, plasticity was significantly related to genome size-for some plant traits, the relationship was positive, and in others, it was negative. Overall, we found mixed support for LGCH and for the first time found that genome size is associated with plasticity, a trait widely regarded as important to invasion success.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Plant genome size influences stress tolerance of invasive and native plants via plasticity

et al. 2020

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“…Snails are a prominent component of the mangrove ecosystem (Morgan & Hailstone, 1986;Pribadi et al, 2009;Jeeva et al, 2018), which is characterized by diverse plant species (Suratissa & Rathnayake, 2017) and is primarily found in tropical (Gaut, 2018;Alongi, 2018;Schaduw, 2019) and subtropical regions (Maiti & Chowdhury, 2013;Polania et al, 2015;Alongi, 2018) between 5° North Latitude and 5° South Latitude (Giri et al, 2011). Mangroves are known for their high species diversity in marine environments, particularly along beaches and river estuaries affected by sea tides (Gaut, 2018;Schaduw, 2019).…”

Section: Introductionmentioning

confidence: 99%

Bioecological characteristics of mangrove snail in Langsa mangrove forest, Aceh, Indonesia: Diversity and community structure

Mardiah,

Erlangga,

Syahrial

et al. 2024

JoMS

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The most crucial aspect of managing an ecosystem or habitat is knowledge about accompanying biota, such as snails. The research on mangrove snails in the KPH Region III Aceh City of Langsa area was conducted in November 2021 with the goal of evaluating species diversity, density, ecological index, distribution, and their link to surrounding environmental conditions. Snail data was obtained via quadrat transects, with observation stations established using purposive sampling.The snail diversity was found to be five species from four families, with the highest density found in N. planospira (03.13 ind/m2). The diversity index was low (H' ≤ 2.0), dominance was moderate (0.5 < C ≤ 0.75), and uniformity tended to be balanced (0.5 < E ≤ 0.75). The distribution pattern is clustered (Iδ> 1), with C. cingulata being abundant (83.33%), and C. capucinus being frequently found (50.00%), N. planospiraonly found occasionally (36.11%), and L. scabra and T. telescopium are relatively uncommon (11.11% and 0.56%, respectively), with a link to environmental variables indicating that T. telescopium prefers fine mud substrates. Meanwhile, C. cingulata, C. capucinus, L. scabra, and N. planospiralive in habitats with fine mud substrates that are more solid than T. telescopium’s habitats.

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“…Mangrove forests are a variety of tropical and subtropical forests that thrive in coastal areas or river estuaries and are impacted by the fluctuating levels of sea tides (Gaut, 2018;Schaduw, 2019). Mangrove forests have a crucial role in supporting a significant portion of global biodiversity.…”

Section: Introductionmentioning

confidence: 99%

Ecological characteristic of hermit crabs in Lhokseumawe mangrove forest, Aceh, Indonesia

Fitriani,

Erlangga,

Syahrial

et al. 2024

JoMS

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The study was conducted between August and September of 2021 in order to determine the density, ecological index, distribution pattern, geographic distribution, environmental factors, and the relationship between hermit crabs and environmental factors. Hermit crabs were gathered using a quadratic transect and sample plots, while environmental variables were measured in situ. PCA and CCA multivariate statistics were used to determine the characteristics and correlation between hermit crabs and environmental factors. Hermit crabs were discovered to be comprised of two species (Clibanariuslongitarsus and C. infraspinatus) and one family (Diogenidae), with the highest density found in the C. longitarsus species (1.22 ± 0.57 – 4.68 3.53 ind/m2), diversity index is categorized as moderate (2.0<H’≤3.0), the dominance is low (0<C≤0.5), the distribution pattern is clustered (Iδ>1), the geographical distribution is abundant (>80%), and environmental factors are categorized as good. In addition, Stations I and II have high DO, TOM, mangrove density, C. longitarsus, and C. infraspinatus parameters, whereas Station III has high salinity, pH, and temperature, with salinity, mangrove density, and TOM being the most influential parameters on hermit crab density.

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A convergent outcome: small genomes in mangroves

Abstract: This article is a Commentary on Lyu et al., 217: 428–438.

Cited by 4 publications

References 20 publications

Plant genome size influences stress tolerance of invasive and native plants via plasticity

Plant genome size influences stress tolerance of invasive and native plants via plasticity

Bioecological characteristics of mangrove snail in Langsa mangrove forest, Aceh, Indonesia: Diversity and community structure

Ecological characteristic of hermit crabs in Lhokseumawe mangrove forest, Aceh, Indonesia

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