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QTL Mapping of Growth-Related Traits in a Full-Sib Family of Rubber Tree (Hevea brasiliensis) Evaluated in a Sub-Tropical Climate

Overview of attention for article published in PLOS ONE, April 2013
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Title
QTL Mapping of Growth-Related Traits in a Full-Sib Family of Rubber Tree (Hevea brasiliensis) Evaluated in a Sub-Tropical Climate
Published in
PLOS ONE, April 2013
DOI 10.1371/journal.pone.0061238
Pubmed ID
Authors

Livia Moura Souza, Rodrigo Gazaffi, Camila Campos Mantello, Carla Cristina Silva, Dominique Garcia, Vincent Le Guen, Saulo Emilio Almeida Cardoso, Antonio Augusto Franco Garcia, Anete Pereira Souza

Abstract

The rubber tree (Hevea spp.), cultivated in equatorial and tropical countries, is the primary plant used in natural rubber production. Due to genetic and physiological constraints, inbred lines of this species are not available. Therefore, alternative approaches are required for the characterization of this species, such as the genetic mapping of full-sib crosses derived from outbred parents. In the present study, an integrated genetic map was obtained for a full-sib cross family with simple sequence repeats (SSRs) and expressed sequence tag (EST-SSR) markers, which can display different segregation patterns. To study the genetic architecture of the traits related to growth in two different conditions (winter and summer), quantitative trait loci (QTL) mapping was also performed using the integrated map. Traits evaluated were height and girth growth, and the statistical model was based in an extension of composite interval mapping. The obtained molecular genetic map has 284 markers distributed among 23 linkage groups with a total length of 2688.8 cM. A total of 18 QTLs for growth traits during the summer and winter seasons were detected. A comparison between the different seasons was also conducted. For height, QTLs detected during the summer season were different from the ones detected during winter season. This type of difference was also observed for girth. Integrated maps are important for genetics studies in outbred species because they represent more accurately the polymorphisms observed in the genitors. QTL mapping revealed several interesting findings, such as a dominance effect and unique segregation patterns that each QTL could exhibit, which were independent of the flanking markers. The QTLs identified in this study, especially those related to phenotypic variation associated with winter could help studies of marker-assisted selection that are particularly important when the objective of a breeding program is to obtain phenotypes that are adapted to sub-optimal regions.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 78 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Brazil 12 15%
Unknown 66 85%

Demographic breakdown

Readers by professional status Count As %
Researcher 15 19%
Student > Ph. D. Student 11 14%
Student > Master 9 12%
Student > Doctoral Student 7 9%
Professor 6 8%
Other 15 19%
Unknown 15 19%
Readers by discipline Count As %
Agricultural and Biological Sciences 49 63%
Biochemistry, Genetics and Molecular Biology 6 8%
Environmental Science 3 4%
Computer Science 1 1%
Psychology 1 1%
Other 0 0%
Unknown 18 23%
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 21 April 2013.
All research outputs
#20,190,878
of 22,707,247 outputs
Outputs from PLOS ONE
#173,039
of 193,889 outputs
Outputs of similar age
#172,288
of 197,527 outputs
Outputs of similar age from PLOS ONE
#4,330
of 5,134 outputs
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