Post-fire recovery of Puya raimondii, vegetation and birds in the puna of Huascarán National Park, Perú

Suni, Mery L.; Vadillo, Giovana P.; Arana, César; Jara-Peña, Enoc; Salinas, Letty; Ponce, M. Estela; Ramsay, Paul M.

doi:10.1007/s11629-023-8263-7

J. Mt. Sci.

2024

DOI: 10.1007/s11629-023-8263-7

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Post-fire recovery of Puya raimondii, vegetation and birds in the puna of Huascarán National Park, Perú

Mery L. Suni,

Giovana P. Vadillo,

César Arana

et al.

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The ‘queen of the Andes’ (Puya raimondii) is genetically fragile and fragmented: a consequence of long generation time and semelparity?

Liu,

James,

Zhang

et al. 2024

New Phytologist

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Summary Understanding how life history shapes genetic diversity is a fundamental issue in evolutionary biology, with important consequences for conservation. However, we still have an incomplete picture of the impact of life history on genome‐wide patterns of diversity, especially in long‐lived semelparous plants. Puya raimondii is a high‐altitude semelparous species from the Andes that flowers at 40–100 years of age. We sequenced the whole genome and estimated the nucleotide diversity of 200 individuals sampled from nine populations. Coalescent‐based approaches were then used to infer past population dynamics. Finally, these results were compared with results obtained for the iteroparous species, Puya macrura. The nine populations of P. raimondii were highly divergent, highly inbred, and carried an exceptionally high genetic load. They are genetically depauperate, although, locally in the genome, balancing selection contributed to the maintenance of genetic polymorphism. While both P. raimondii and P. macrura went through a severe bottleneck during the Pleistocene, P. raimondii did not recover from it and continuously declined, while P. macrura managed to bounce back. Our results demonstrate the importance of life history, in particular generation time and reproductive strategy, in affecting population dynamics and genomic variation, and illustrate the genetic fragility of long‐lived semelparous plants.

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The ‘queen of the Andes’ (Puya raimondii) is genetically fragile and fragmented: a consequence of long generation time and semelparity?

Liu,

James,

Zhang

et al. 2024

New Phytologist

View full text Add to dashboard Cite

show abstract

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Post-fire recovery of Puya raimondii, vegetation and birds in the puna of Huascarán National Park, Perú

Cited by 1 publication

References 40 publications

The ‘queen of the Andes’ (Puya raimondii) is genetically fragile and fragmented: a consequence of long generation time and semelparity?

The ‘queen of the Andes’ (Puya raimondii) is genetically fragile and fragmented: a consequence of long generation time and semelparity?

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