La importancia de la Puya raimondii

Arroyo-Alfaro, Sandra J.; Hernández, Mirtha Camacho; Ramos-Parado, Kathia; Grados-Bueno, Claudia V.

doi:10.36580/inaigem.document15

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2022

DOI: 10.36580/inaigem.document15

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La importancia de la Puya raimondii

Sandra J. Arroyo-Alfaro¹,

Mirtha Camacho Hernández²,

Kathia Ramos-Parado³

et al.

Abstract: Este folleto describe diversos aspectos biológicos y culturales relacionados con la especie Puya raimondii, para dar a conocer la gran importancia que tiene para nuestro país. Se describe su descubrimiento, distribución geográfica, condiciones ambientales en las que se desarrolla y principales características biológicas. Además, se destaca su importancia cultural, a través de sus usos cotidianos y los nombres comunes con los que se le conoce en el Perú, además de “puya”.

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2024

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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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La importancia de la Puya raimondii

Cited by 1 publication

References 7 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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