Genetic diversity in Calibrachoa pygmaea (Solanaceae): A hawkmoth-pollinated nightshade from the Pampas

ABSTRACT Calibrachoa pygmaea is a unique species of Calibrachoa, especially concerning its flower morphology and the environment where it occurs. The species is self-incompatible and is narrowly distributed in wet and flooded fields of the Pampas region. We characterize the genetic diversity of the...

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Main Authors: Geraldo Mäder, Alice Backes, Maikel Reck-Kortmann, Loreta B. Freitas
Format: Article
Language:English
Published: Sociedade Botânica do Brasil
Series:Acta Botânica Brasílica
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019005005103&lng=en&tlng=en
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author Geraldo Mäder
Alice Backes
Maikel Reck-Kortmann
Loreta B. Freitas
author_facet Geraldo Mäder
Alice Backes
Maikel Reck-Kortmann
Loreta B. Freitas
author_sort Geraldo Mäder
collection DOAJ
description ABSTRACT Calibrachoa pygmaea is a unique species of Calibrachoa, especially concerning its flower morphology and the environment where it occurs. The species is self-incompatible and is narrowly distributed in wet and flooded fields of the Pampas region. We characterize the genetic diversity of the species based on traditional plastid markers and newly developed nuclear microsatellites to identify drivers that guide its evolution. Our results identified markers that are informative and useful for studying the population structure of C. pygmaea, as well as that of other species of Calibrachoa. Both marker sets were congruent in developing conclusions regarding the evolutionary scenario of C. pygmaea, and revealed that the genetic variability and population structure of the species could be explained by common allele fixation or shared ancestral polymorphism, while its diversification can be attributed mainly to the species’ dispersal ability and certain ecological features.
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spelling doaj.art-42a75904e8b9419ab89e53961d42df5a2022-12-21T17:44:06ZengSociedade Botânica do BrasilActa Botânica Brasílica1677-941X10.1590/0102-33062019abb0080S0102-33062019005005103Genetic diversity in Calibrachoa pygmaea (Solanaceae): A hawkmoth-pollinated nightshade from the PampasGeraldo MäderAlice BackesMaikel Reck-KortmannLoreta B. FreitasABSTRACT Calibrachoa pygmaea is a unique species of Calibrachoa, especially concerning its flower morphology and the environment where it occurs. The species is self-incompatible and is narrowly distributed in wet and flooded fields of the Pampas region. We characterize the genetic diversity of the species based on traditional plastid markers and newly developed nuclear microsatellites to identify drivers that guide its evolution. Our results identified markers that are informative and useful for studying the population structure of C. pygmaea, as well as that of other species of Calibrachoa. Both marker sets were congruent in developing conclusions regarding the evolutionary scenario of C. pygmaea, and revealed that the genetic variability and population structure of the species could be explained by common allele fixation or shared ancestral polymorphism, while its diversification can be attributed mainly to the species’ dispersal ability and certain ecological features.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019005005103&lng=en&tlng=encross-amplificationgene flowgenetic diversityplastid haplotypespopulation geneticsSSR markerswild petunias
spellingShingle Geraldo Mäder
Alice Backes
Maikel Reck-Kortmann
Loreta B. Freitas
Genetic diversity in Calibrachoa pygmaea (Solanaceae): A hawkmoth-pollinated nightshade from the Pampas
Acta Botânica Brasílica
cross-amplification
gene flow
genetic diversity
plastid haplotypes
population genetics
SSR markers
wild petunias
title Genetic diversity in Calibrachoa pygmaea (Solanaceae): A hawkmoth-pollinated nightshade from the Pampas
title_full Genetic diversity in Calibrachoa pygmaea (Solanaceae): A hawkmoth-pollinated nightshade from the Pampas
title_fullStr Genetic diversity in Calibrachoa pygmaea (Solanaceae): A hawkmoth-pollinated nightshade from the Pampas
title_full_unstemmed Genetic diversity in Calibrachoa pygmaea (Solanaceae): A hawkmoth-pollinated nightshade from the Pampas
title_short Genetic diversity in Calibrachoa pygmaea (Solanaceae): A hawkmoth-pollinated nightshade from the Pampas
title_sort genetic diversity in calibrachoa pygmaea solanaceae a hawkmoth pollinated nightshade from the pampas
topic cross-amplification
gene flow
genetic diversity
plastid haplotypes
population genetics
SSR markers
wild petunias
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019005005103&lng=en&tlng=en
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