Short-term fluctuating and long-term divergent selection on sympatric Monkeyflowers: insights from decade-spanning reciprocal transplants DOI Creative Commons
Caroline M. Dong, Bolívar Aponte Rolón,

Juj K. Sullivan

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 29, 2024

ABSTRACT Sympatric species are often locally adapted to distinct microhabitats. However, temporal variation may cause local maladaptation and boundary breakdown, especially during extreme climatic events leading episodic selection. Repeated reciprocal transplants can reveal the interplay between short long-term patterns of natural To examine evolutionary trajectories sympatric Monkeyflowers different niches, Mimulus guttatus M. laciniatus, we performed three replicated combined them with previous experiments leverage a dataset five spanning 10 years. We phenotypic selection analyses on parents hybrids in parental habitats Yosemite NP, CA years drastically differing snowpack. If there is ecological isolation, then predicted divergent line species’ differences adaptation. found interannual fluctuations selection, unpredicted directions. combined-year analysis detected longer-term flowering time, key temporally isolating adaptative trait, suggesting that reinforce boundaries despite short-term fluctuations. Finally, adaptation laciniatus low snowpack years, while an extremely high year contributed average .

Language: Английский

Development and Application of Novel SSR Markers to Assess the Genetic Diversity and Population Structure of Phacelia secunda Along an Altitudinal Gradient in the Central Chile Andes DOI Creative Commons
Cristian Torres‐Díaz,

Ana Ortíz-Sepúlveda,

Moisés A. Valladares

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(7), P. 1135 - 1135

Published: April 5, 2025

Phacelia secunda J.F. Gmel. (Boraginaceae) is a widely distributed insect-pollinated perennial herb. In central Chile (33° S), it occurs from the sea level up to 3600 m in Andes, exhibiting broad morphological variation. this study, we developed and characterized novel polymorphic microsatellites for species, using an Illimina MiSeq sequencing platform. Nineteen loci were obtained, with alleles numbers ranging 3 13 per locus (mean = 5.84). Observed (HO) expected heterozygosities (HE) ranged 0.050 0.900 0.049 0.825, respectively. These markers applied assess genetic diversity population structure along altitudinal spanning 1600 m. The highest elevation exhibited significantly lower within-population compared lower-elevation populations. Significant differentiation was observed gradient. Gene flow estimates support stepping-stone like mode of migration, greater exchange between adjacent elevations. new provide valuable tool elucidating influence altitude on structure, evaluating roles local adaptation phenotypic plasticity shaping

Language: Английский

Citations

0
Herbarium specimens reveal links between leaf shape of Capsella bursa‐pastoris and climate DOI Creative Commons
Asia T. Hightower, Daniel H. Chitwood, Emily B. Josephs

et al.

American Journal of Botany, Journal Year: 2024, Volume and Issue: 111(11)

Published: Nov. 1, 2024

Abstract Premise Studies into the evolution and development of leaf shape have connected variation in plant form, function, fitness. For species with consistent margin features, patterns architecture are related to both biotic abiotic factors. However, for inconsistent shapes, quantifying effects environmental factors on has proven challenging. Methods To investigate a inconsistently shaped leaves, we used geometric morphometric modeling deterministic techniques analyze approximately 500 digitized specimens Capsella bursa‐pastoris collected throughout continental United States over 100 years. We generated morphospace shapes modeled as function environment time. Results Leaf C. was strongly associated temperature its growing season, lobing decreasing increased. While expected see changes time, our results show that level Conclusions Our findings showed can be quantified using is main factor influencing variation.

Language: Английский

Citations

1
Differentiation in Leaf Functional Traits and Driving Factors of the Allopatric Distribution of Tetraploid and Octaploid Buddleja macrostachya in the Sino-Himalayan Region DOI Open Access
Weichang Gong, Li He,

Hongbo Fu

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(6), P. 1007 - 1007

Published: June 8, 2024

Leaf functional traits reflect species’ adaptive strategies and habitat requirements. Examining intra-specific variations their underlying drivers can aid in comprehending species differentiation adaptation. Here, we investigated the leaf of Buddleja macrostachya tetraploids octaploids across 18 sites Sino-Himalayan region. The environmental variables were also recorded. In this study, showed a considerable both tetraploid octaploid B. macrostachya. Redundancy analysis (RDA) revealed that cytotypes displayed higher specific area, total nitrogen phosphorus concentrations, water-use efficiency, light-use efficiency contrast to plants. These exhibited different plasticity levels taxa. A positive link was found between altitude soil P concentration geographic distribution complex, using RDA Pearson’s correlation. Our findings suggest divergent ecological strategies, conservative acquisitive respectively. adaptability within complex is enhanced by combination high phenotypic distinct key traits. Furthermore, abiotic factors influenced allopatric pattern

Language: Английский

Citations

0
Short-term fluctuating and long-term divergent selection on sympatric Monkeyflowers: insights from decade-spanning reciprocal transplants DOI Creative Commons
Caroline M. Dong, Bolívar Aponte Rolón,

Juj K. Sullivan

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 29, 2024

ABSTRACT Sympatric species are often locally adapted to distinct microhabitats. However, temporal variation may cause local maladaptation and boundary breakdown, especially during extreme climatic events leading episodic selection. Repeated reciprocal transplants can reveal the interplay between short long-term patterns of natural To examine evolutionary trajectories sympatric Monkeyflowers different niches, Mimulus guttatus M. laciniatus, we performed three replicated combined them with previous experiments leverage a dataset five spanning 10 years. We phenotypic selection analyses on parents hybrids in parental habitats Yosemite NP, CA years drastically differing snowpack. If there is ecological isolation, then predicted divergent line species’ differences adaptation. found interannual fluctuations selection, unpredicted directions. combined-year analysis detected longer-term flowering time, key temporally isolating adaptative trait, suggesting that reinforce boundaries despite short-term fluctuations. Finally, adaptation laciniatus low snowpack years, while an extremely high year contributed average .

Language: Английский

Citations

0