Cargando…

Plant apomixis is rare in Himalayan high-alpine flora

Gametophytic apomixis is a way of asexual plant reproduction by seeds. It should be advantageous under stressful high altitude or latitude environment where short growing seasons, low temperatures, low pollinator activity or unstable weather may hamper sexual reproduction. However, this hypothesis r...

Descripción completa

Detalles Bibliográficos
Autores principales: Brožová, Viktorie, Koutecký, Petr, Doležal, Jiří
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6779868/
https://www.ncbi.nlm.nih.gov/pubmed/31591463
http://dx.doi.org/10.1038/s41598-019-50907-5
_version_ 1783456991222431744
author Brožová, Viktorie
Koutecký, Petr
Doležal, Jiří
author_facet Brožová, Viktorie
Koutecký, Petr
Doležal, Jiří
author_sort Brožová, Viktorie
collection PubMed
description Gametophytic apomixis is a way of asexual plant reproduction by seeds. It should be advantageous under stressful high altitude or latitude environment where short growing seasons, low temperatures, low pollinator activity or unstable weather may hamper sexual reproduction. However, this hypothesis remains largely untested. Here, we assess the reproductive mode in 257 species belonging to 45 families from the world’s broadest alpine belt (2800–6150 m) in NW Himalayas using flow cytometric seed screen. We found only 12 apomictic species, including several members of Poaceae (Festuca, Poa and Stipa), Rosaceae (Potentilla) and Ranunculaceae (Halerpestes, Ranunculus), which are families typical for high apomict frequency. However, several apomictic species were newly discovered, including the first known apomictic species from the family Biebersteiniaceae (Biebersteinia odora), and first apomicts from the genera Stipa (Stipa splendens) and Halerpestes (Halerpestes lancifolia). Apomicts showed no preference for higher elevations, even in these extreme Himalayan alpine habitats. Additional trait-based analyses revealed that apomicts differed from sexuals in comprising more rhizomatous graminoids and forbs, higher soil moisture demands, sharing the syndrome of dominant species with broad geographical and elevation ranges typical for the late-successional habitats. Apomicts differ from non-apomicts in greater ability of clonal propagation and preference for wetter, more productive habitats.
format Online
Article
Text
id pubmed-6779868
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-67798682019-10-16 Plant apomixis is rare in Himalayan high-alpine flora Brožová, Viktorie Koutecký, Petr Doležal, Jiří Sci Rep Article Gametophytic apomixis is a way of asexual plant reproduction by seeds. It should be advantageous under stressful high altitude or latitude environment where short growing seasons, low temperatures, low pollinator activity or unstable weather may hamper sexual reproduction. However, this hypothesis remains largely untested. Here, we assess the reproductive mode in 257 species belonging to 45 families from the world’s broadest alpine belt (2800–6150 m) in NW Himalayas using flow cytometric seed screen. We found only 12 apomictic species, including several members of Poaceae (Festuca, Poa and Stipa), Rosaceae (Potentilla) and Ranunculaceae (Halerpestes, Ranunculus), which are families typical for high apomict frequency. However, several apomictic species were newly discovered, including the first known apomictic species from the family Biebersteiniaceae (Biebersteinia odora), and first apomicts from the genera Stipa (Stipa splendens) and Halerpestes (Halerpestes lancifolia). Apomicts showed no preference for higher elevations, even in these extreme Himalayan alpine habitats. Additional trait-based analyses revealed that apomicts differed from sexuals in comprising more rhizomatous graminoids and forbs, higher soil moisture demands, sharing the syndrome of dominant species with broad geographical and elevation ranges typical for the late-successional habitats. Apomicts differ from non-apomicts in greater ability of clonal propagation and preference for wetter, more productive habitats. Nature Publishing Group UK 2019-10-07 /pmc/articles/PMC6779868/ /pubmed/31591463 http://dx.doi.org/10.1038/s41598-019-50907-5 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Brožová, Viktorie
Koutecký, Petr
Doležal, Jiří
Plant apomixis is rare in Himalayan high-alpine flora
title Plant apomixis is rare in Himalayan high-alpine flora
title_full Plant apomixis is rare in Himalayan high-alpine flora
title_fullStr Plant apomixis is rare in Himalayan high-alpine flora
title_full_unstemmed Plant apomixis is rare in Himalayan high-alpine flora
title_short Plant apomixis is rare in Himalayan high-alpine flora
title_sort plant apomixis is rare in himalayan high-alpine flora
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6779868/
https://www.ncbi.nlm.nih.gov/pubmed/31591463
http://dx.doi.org/10.1038/s41598-019-50907-5
work_keys_str_mv AT brozovaviktorie plantapomixisisrareinhimalayanhighalpineflora
AT kouteckypetr plantapomixisisrareinhimalayanhighalpineflora
AT dolezaljiri plantapomixisisrareinhimalayanhighalpineflora