Changes in phenology can alter patterns of natural selection: the joint evolution of germination time and postgermination traits

D’Aguillo, Michelle; Donohue, Kathleen

doi:10.1111/nph.18711

Cited by 5 publications

(4 citation statements)

References 85 publications

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“…Early life history transitions are thought to be under strong selection because of their cascading effects on later life stages (Baskin and Baskin 1971;Marks and Prince 1981;Donohue 2002Donohue , 2005. In plant populations, the environmental conditions at the time of germination can alter the strength and direction of natural selection on postgermination traits (Donohue et al 2010;D'Aguillo and Donohue 2023). In turn, this can affect the competitive environment, resource availability, and density-dependent selective agents experienced by populations (Donohue et al 2010).…”

Section: Discussionmentioning

confidence: 99%

Chronosequence of invasion reveals minimal losses of population genomic diversity, niche expansion, and trait divergence in the polyploid, leafy spurge

Lake

Runquist

Flagel

et al. 2023

Preprint

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Rapid evolution may play an important role in the range expansion of invasive species and modify forecasts of invasion, which are the backbone of land management strategies. However, losses of genetic variation associated with colonization bottlenecks may constrain trait and niche divergence at leading range edges. The spatial and temporal scales over which adaptation contributes to invasion dynamics remains unresolved. We leveraged detailed records of the ~130 year invasion history of the invasive polyploid plant, leafy spurge (Euphorbia virgata), across ~500km in Minnesota, U.S.A. We examined the consequences of range expansion for population genomic diversity, niche breadth, and the evolution of germination behavior. Using genotyping-by-sequencing, we found some population structure in the range core, where introduction occurred, but panmixia among all other populations. Range expansion was accompanied by only modest losses in sequence diversity, with small, isolated populations at the leading edge harboring similar levels of diversity to those in the range core. The climatic niche expanded during most of range expansion, and the niche of the range core was largely non-overlapping with the invasion front. Ecological niche models indicated that mean temperature of the warmest quarter was the strongest determinant of habitat suitability and that populations at the leading edge had the lowest habitat suitability. Guided by these findings, we tested for rapid evolution in germination behavior over the time course of range expansion using a common garden experiment and temperature manipulations. Germination behavior diverged from early to late phases of the invasion, with populations from later phases having higher dormancy at lower temperatures. Our results suggest that trait evolution has contributed to niche expansion during invasion and that distribution models of future invasion may underestimate invasion potential without accounting for evolution.

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Section: Discussionmentioning

confidence: 99%

Chronosequence of invasion reveals minimal losses of population genomic diversity, niche expansion, and trait divergence in the polyploid, leafy spurge

Lake

Runquist

Flagel

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Early life-history transitions are thought to be under strong selection because of their cascading effects on later life stages (Baskin & Baskin, 1971;Donohue, 2002Donohue, , 2005Marks & Prince, 1981). In plant populations, environmental conditions at the time of germination can alter the strength and direction of natural selection on postgermination traits (D'Aguillo & Donohue, 2023;Donohue et al, 2010). In turn, this can affect the competitive environment, resource availability, and density-dependent selective agents experienced by populations (Donohue et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Chronosequence of invasion reveals minimal losses of population genomic diversity, niche expansion, and trait divergence in the polyploid, leafy spurge

Lake,

Briscoe Runquist,

Flagel

et al. 2023

Evolutionary Applications

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Rapid evolution may play an important role in the range expansion of invasive species and modify forecasts of invasion, which are the backbone of land management strategies. However, losses of genetic variation associated with colonization bottlenecks may constrain trait and niche divergence at leading range edges, thereby impacting management decisions that anticipate future range expansion. The spatial and temporal scales over which adaptation contributes to invasion dynamics remain unresolved. We leveraged detailed records of the ~130‐year invasion history of the invasive polyploid plant, leafy spurge (Euphorbia virgata), across ~500 km in Minnesota, U.S.A. We examined the consequences of range expansion for population genomic diversity, niche breadth, and the evolution of germination behavior. Using genotyping‐by‐sequencing, we found some population structure in the range core, where introduction occurred, but panmixia among all other populations. Range expansion was accompanied by only modest losses in sequence diversity, with small, isolated populations at the leading edge harboring similar levels of diversity to those in the range core. The climatic niche expanded during most of the range expansion, and the niche of the range core was largely non‐overlapping with the invasion front. Ecological niche models indicated that mean temperature of the warmest quarter was the strongest determinant of habitat suitability and that populations at the leading edge had the lowest habitat suitability. Guided by these findings, we tested for rapid evolution in germination behavior over the time course of range expansion using a common garden experiment and temperature manipulations. Germination behavior diverged from the early to late phases of the invasion, with populations from later phases having higher dormancy at lower temperatures. Our results suggest that trait evolution may have contributed to niche expansion during invasion and that distribution models, which inform future management planning, may underestimate invasion potential without accounting for evolution.

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“…It is speculated that novel alleles may have emerged out of natural processes of evolution and adaptation. Natural selection is important evolutionary forces, and genetic information, including allele frequencies, may be changed in response to environmental characteristics and climatic change [42,43]. O. rehderiana is very sensitive to climatic changes, including temperature and precipitation fluctuations, which may be one of the reasons for its endangered condition [39].…”

Section: Genetic Variationmentioning

confidence: 99%

Analysis of the Conservation Status, Genetic Diversity and Population Structure of Endangered Ostrya rehderiana Resources Using SSR Markers

Zhou

Wang

2023

Forests

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Climate change and anthropogenic habitat destruction have led to the extinction of many species. Ostrya rehderiana (Betulaceae) is a typical rare and endangered species, and only five wild individuals have survived. In the 1980s, the offspring of the five wild trees were planted for ex situ conservation and have grown into stable cultivated populations. To protect O. rehderiana resources, the genetic diversity and genetic structure of this species were analysed using SSR markers. A total of 167 alleles were detected among 116 individuals from the only wild population and five cultivated populations at 12 SSR loci. The genetic diversity level of O. rehderiana was He = 0.88. Genetic differentiations occurred among populations (Fst = 0.17), which was also validated via an analysis of molecular variance (AMOVA). The cultivated populations TM1, TM2 and WC showed considerable genetic differences from the wild population WP based on Bayesian clustering analysis, phylogenetic tree reconstruction and principal coordinate analysis (PCoA). The cultivated populations had more genetic diversity than the wild one. It is speculated that novel alleles may have emerged out of natural processes of evolution and adaptation. The cultivated population QY with the most unique alleles has begun to propagate seedlings naturally, and the small population size and geographical isolation may negatively influence the founding of this population. To weaken the effects of bottlenecks and genetic drift, anthropogenic gene flow among populations is necessary. In addition to the wild population, the cultivated population QY and six individuals from populations QY and WC were also found to be important for the conservation of O. rehderiana. The results of this study may guide the development of conservation policies for endangered O. rehderiana.

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Changes in phenology can alter patterns of natural selection: the joint evolution of germination time and postgermination traits

Cited by 5 publications

References 85 publications

Chronosequence of invasion reveals minimal losses of population genomic diversity, niche expansion, and trait divergence in the polyploid, leafy spurge

Chronosequence of invasion reveals minimal losses of population genomic diversity, niche expansion, and trait divergence in the polyploid, leafy spurge

Chronosequence of invasion reveals minimal losses of population genomic diversity, niche expansion, and trait divergence in the polyploid, leafy spurge

Analysis of the Conservation Status, Genetic Diversity and Population Structure of Endangered Ostrya rehderiana Resources Using SSR Markers

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