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Development of 35 microsatellite markers from heat stress transcription factors in Populus simonii (Salicaceae).

Identifieur interne : 002B34 ( Main/Exploration ); précédent : 002B33; suivant : 002B35

Development of 35 microsatellite markers from heat stress transcription factors in Populus simonii (Salicaceae).

Auteurs : Lu Wang [République populaire de Chine] ; Bao-Lei Wang ; Zun-Zheng Wei ; Qing-Zhang Du ; De-Qiang Zhang ; Bai-Lian Li

Source :

RBID : pubmed:22933359

Descripteurs français

English descriptors

Abstract

PREMISE OF THE STUDY

Microsatellite markers within regulators of heat stress transcription factors were identified in the Populus trichocarpa genome, and then developed for P. simonii to investigate the genetic diversity of germplasm resources and to further identify favorable alleles significantly associated with stress-resistant traits.

METHODS AND RESULTS

Thirty-five novel microsatellite markers were identified from genes controlling heat stress transcription factors in P. simonii using a Sanger sequencing protocol. Polymorphisms in 48 individuals from 16 populations of P. simonii revealed that the number of alleles per locus ranged from two to nine with an average of 4.6; the observed heterozygosity and expected heterozygosity per locus varied from 0.143 to 0.857 and from 0.257 to 0.948, respectively.

CONCLUSIONS

The new polymorphic markers developed during this study will facilitate the construction of genetic linkage maps and will aid in marker-assisted breeding of a new germplasm with desirable abiotic stress resistance in Populus species.


DOI: 10.3732/ajb.1200056
PubMed: 22933359


Affiliations:


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Le document en format XML

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<title xml:lang="en">Development of 35 microsatellite markers from heat stress transcription factors in Populus simonii (Salicaceae).</title>
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<nlm:affiliation>National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, People's Republic of China.</nlm:affiliation>
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<name sortKey="Wei, Zun Zheng" sort="Wei, Zun Zheng" uniqKey="Wei Z" first="Zun-Zheng" last="Wei">Zun-Zheng Wei</name>
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<name sortKey="Du, Qing Zhang" sort="Du, Qing Zhang" uniqKey="Du Q" first="Qing-Zhang" last="Du">Qing-Zhang Du</name>
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<name sortKey="Zhang, De Qiang" sort="Zhang, De Qiang" uniqKey="Zhang D" first="De-Qiang" last="Zhang">De-Qiang Zhang</name>
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<term>DNA-Binding Proteins (genetics)</term>
<term>Genetic Loci (genetics)</term>
<term>Genetic Variation (MeSH)</term>
<term>Heat Shock Transcription Factors (MeSH)</term>
<term>Heat-Shock Proteins (genetics)</term>
<term>Microsatellite Repeats (genetics)</term>
<term>Molecular Sequence Data (MeSH)</term>
<term>Plant Proteins (genetics)</term>
<term>Populus (genetics)</term>
<term>Transcription Factors (genetics)</term>
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<term>Données de séquences moléculaires (MeSH)</term>
<term>Facteurs de transcription (génétique)</term>
<term>Facteurs de transcription de choc thermique (MeSH)</term>
<term>Locus génétiques (génétique)</term>
<term>Populus (génétique)</term>
<term>Protéines de liaison à l'ADN (génétique)</term>
<term>Protéines du choc thermique (génétique)</term>
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<term>Répétitions microsatellites (génétique)</term>
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<term>Plant Proteins</term>
<term>Transcription Factors</term>
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<b>PREMISE OF THE STUDY</b>
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<p>Microsatellite markers within regulators of heat stress transcription factors were identified in the Populus trichocarpa genome, and then developed for P. simonii to investigate the genetic diversity of germplasm resources and to further identify favorable alleles significantly associated with stress-resistant traits.</p>
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<b>METHODS AND RESULTS</b>
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<p>Thirty-five novel microsatellite markers were identified from genes controlling heat stress transcription factors in P. simonii using a Sanger sequencing protocol. Polymorphisms in 48 individuals from 16 populations of P. simonii revealed that the number of alleles per locus ranged from two to nine with an average of 4.6; the observed heterozygosity and expected heterozygosity per locus varied from 0.143 to 0.857 and from 0.257 to 0.948, respectively.</p>
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<b>CONCLUSIONS</b>
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<p>The new polymorphic markers developed during this study will facilitate the construction of genetic linkage maps and will aid in marker-assisted breeding of a new germplasm with desirable abiotic stress resistance in Populus species.</p>
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