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Studies of life history of Gagea graeca (Liliaceae) based on morphological and molecular methods

BACKGROUND: We studied the life history of Gagea graeca (L.) A. Terracc. (sect. Anthericoides) by field surveys on the Greek island of Crete, including quantitative analyses of 405 individuals, estimation of resource allocation by measuring the nitrogen content of different plant organs, assessing s...

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Autores principales: Schnittler, Martin, Nursafina, Akmaral, Peterson, Angela, Peterson, Jens, Barnick, Carl, Klahr, Anja
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5626670/
https://www.ncbi.nlm.nih.gov/pubmed/28975526
http://dx.doi.org/10.1186/s40529-017-0194-6
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author Schnittler, Martin
Nursafina, Akmaral
Peterson, Angela
Peterson, Jens
Barnick, Carl
Klahr, Anja
author_facet Schnittler, Martin
Nursafina, Akmaral
Peterson, Angela
Peterson, Jens
Barnick, Carl
Klahr, Anja
author_sort Schnittler, Martin
collection PubMed
description BACKGROUND: We studied the life history of Gagea graeca (L.) A. Terracc. (sect. Anthericoides) by field surveys on the Greek island of Crete, including quantitative analyses of 405 individuals, estimation of resource allocation by measuring the nitrogen content of different plant organs, assessing seed set and recording genetic diversity via amplified fragment length polymorphism (AFLP) analyses. In contrast to most species of the genus G. graeca seems to be a short-lived perennial, developing several characters that are rather typical for annual plants. RESULTS: Although seed set varies largely, flowering plants produce many (68 ± 79) small, flattened seeds (mean weight 73 ± 22 µg) in comparison to a single bulbil. If measured as nitrogen content of the respective plant parts, investment in seeds (25%) is much higher than that in bulbils (4%). In addition, the threshold for flower formation (expressed as bulb size where 50% of the plants form the respective structure) is with 2.17 ± 0.05 mm lower than that for bulbils with 2.80 ± 0.16 mm. This is in accordance with AFLP analyses revealing predominantly sexual reproduction (only 9.1% of 110 investigated plants belonged to clones). CONCLUSION: In the genus Gagea early, predominantly sexual reproduction seems to be characteristic for species from arid habitats, coupled with a low proportion of clonal plants.
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spelling pubmed-56266702017-10-17 Studies of life history of Gagea graeca (Liliaceae) based on morphological and molecular methods Schnittler, Martin Nursafina, Akmaral Peterson, Angela Peterson, Jens Barnick, Carl Klahr, Anja Bot Stud Original Article BACKGROUND: We studied the life history of Gagea graeca (L.) A. Terracc. (sect. Anthericoides) by field surveys on the Greek island of Crete, including quantitative analyses of 405 individuals, estimation of resource allocation by measuring the nitrogen content of different plant organs, assessing seed set and recording genetic diversity via amplified fragment length polymorphism (AFLP) analyses. In contrast to most species of the genus G. graeca seems to be a short-lived perennial, developing several characters that are rather typical for annual plants. RESULTS: Although seed set varies largely, flowering plants produce many (68 ± 79) small, flattened seeds (mean weight 73 ± 22 µg) in comparison to a single bulbil. If measured as nitrogen content of the respective plant parts, investment in seeds (25%) is much higher than that in bulbils (4%). In addition, the threshold for flower formation (expressed as bulb size where 50% of the plants form the respective structure) is with 2.17 ± 0.05 mm lower than that for bulbils with 2.80 ± 0.16 mm. This is in accordance with AFLP analyses revealing predominantly sexual reproduction (only 9.1% of 110 investigated plants belonged to clones). CONCLUSION: In the genus Gagea early, predominantly sexual reproduction seems to be characteristic for species from arid habitats, coupled with a low proportion of clonal plants. Springer Berlin Heidelberg 2017-10-03 /pmc/articles/PMC5626670/ /pubmed/28975526 http://dx.doi.org/10.1186/s40529-017-0194-6 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.
spellingShingle Original Article
Schnittler, Martin
Nursafina, Akmaral
Peterson, Angela
Peterson, Jens
Barnick, Carl
Klahr, Anja
Studies of life history of Gagea graeca (Liliaceae) based on morphological and molecular methods
title Studies of life history of Gagea graeca (Liliaceae) based on morphological and molecular methods
title_full Studies of life history of Gagea graeca (Liliaceae) based on morphological and molecular methods
title_fullStr Studies of life history of Gagea graeca (Liliaceae) based on morphological and molecular methods
title_full_unstemmed Studies of life history of Gagea graeca (Liliaceae) based on morphological and molecular methods
title_short Studies of life history of Gagea graeca (Liliaceae) based on morphological and molecular methods
title_sort studies of life history of gagea graeca (liliaceae) based on morphological and molecular methods
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5626670/
https://www.ncbi.nlm.nih.gov/pubmed/28975526
http://dx.doi.org/10.1186/s40529-017-0194-6
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