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Cytological and genome size data analyzed in a phylogenetic frame: Evolutionary implications concerning Sisyrinchium taxa (Iridaceae: Iridoideae)

Overview of attention for article published in Genetics and Molecular Biology, March 2018
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Title
Cytological and genome size data analyzed in a phylogenetic frame: Evolutionary implications concerning Sisyrinchium taxa (Iridaceae: Iridoideae)
Published in
Genetics and Molecular Biology, March 2018
DOI 10.1590/1678-4685-gmb-2017-0077
Pubmed ID
Authors

Paula Burchardt, Tatiana T. Souza-Chies, Olivier Chauveau, Sidia M. Callegari-Jacques, Lauís Brisolara-Corrêa, Camila Dellanhese Inácio, Lilian Eggers, Sonja Siljak-Yakovlev, José Marcello Salabert de Campos, Eliane Kaltchuk-Santos

Abstract

Sisyrinchium is the largest genus of Iridaceae in the Americas and has the greatest amount of cytological data available. This study aimed at investigating how genomes evolved in this genus. Chromosome number, genome size and altitude from species of sect. Viperella were analyzed in a phylogenetic context. Meiotic and pollen analyses were performed to assess reproductive success of natural populations, especially from those polyploid taxa. Character optimizations revealed that the common ancestor of sect. Viperella was probably diploid (2n = 2x =18) with two subsequent polyplodization events. Total DNA content (2C) varied considerably across the phylogeny with larger genomes detected mainly in polyploid species. Altitude also varied across the phylogeny, however no significant relationship was found between DNA content changes and altitude in our data set. All taxa presented regular meiosis and pollen viability (> 87%), except for S. sp. nov. aff. alatum (22.70%), suggesting a recent hybrid origin. Chromosome number is mostly constant within this section and polyploidy is the only source of modification. Although 2C varied considerably among the 20 taxa investigated, the diversity observed cannot be attributed only to polyploidy events because large variations of DNA content were also observed among diploids.

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Mendeley readers

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The data shown below were compiled from readership statistics for 12 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 12 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 3 25%
Student > Doctoral Student 1 8%
Student > Bachelor 1 8%
Student > Ph. D. Student 1 8%
Professor 1 8%
Other 2 17%
Unknown 3 25%
Readers by discipline Count As %
Agricultural and Biological Sciences 9 75%
Biochemistry, Genetics and Molecular Biology 1 8%
Medicine and Dentistry 1 8%
Unknown 1 8%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 07 March 2018.
All research outputs
#17,292,294
of 25,382,440 outputs
Outputs from Genetics and Molecular Biology
#408
of 772 outputs
Outputs of similar age
#223,031
of 344,853 outputs
Outputs of similar age from Genetics and Molecular Biology
#7
of 14 outputs
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