A genetic linkage map for a Full sib population of Eucalyptus grandisusing SSR, DArT, CG-SSR and EST-SSR markers

García, Martín; Villalba, Pamela V.; Acuña, Cintia V.; Oberschelp, Javier; Harrand, Leonel; Surenciski, Mauro Rodrigo; Martínez, María; Petroli, César; Sansaloni, Carolina; Faria, Danielle Assis de; Grattapaglia, Dário; Poltri, Susana N. Marcucci

doi:10.1186/1753-6561-5-s7-p26

Cited by 2 publications

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“…Many studies on the comparison between SSRs and SNPs have proven that large numbers of SNP loci were required to replace highly polymorphic SSRs in studies of diversity and relatedness (Hamblin et al [ 2007 ]; Yang et al [ 2011 ]). Further, SSR markers were always preferred as framework markers for developing consensus linkage map, composite integrated linkage map and comparative map between the species (Garcia et al [ 2011 ]; Hudson et al [ 2012 ]).…”

Section: Reviewmentioning

confidence: 99%

Microsatellite resources of Eucalyptus: current status and future perspectives

Sumathi

Yasodha

2014

Bot Stud

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Eucalyptus is the premier paper pulp, short rotation plantation species grown all over the world. Genetic improvement programs integrating molecular marker tools are in progress in many parts of the globe to increase the productivity. Whole genome sequence and expressed sequence tags (ESTs) of the eucalypts paved way for introduction of molecular genetics and breeding in this genus. Different molecular characterization approaches have been used simultaneously in eucalypts, however, microsatellites or simple sequence repeats (SSRs) with their prolific characteristics could occupy a special niche in Eucalyptus genetic improvement. Further, highly informative SSRs were used for the clonal identity, genetic fidelity and in certification of breeder’s rights. Eucalyptus genetic linkage maps generated with microsatellite loci were used successfully to identify quantitative trait loci (QTLs) for various economically important traits. Progressively more numbers of microsatellites are being linked to genes associated with adaptive and functional variations, therefore making their utility broader in genetic applications. Availability of common SSR markers across the species provides an opportunity to validate the expression of QTLs across variable genetic backgrounds and accurately compare the position of QTLs in other species. Recent evidences suggest that the presence of SSRs in micro RNAs of plant species play a role in the quantitative trait expression. Similar studies in eucalypts may provide new insights into the genetic architecture of transcript-level variations and post transcriptional gene regulation. This review on eucalypts microsatellites, highlights the availability and characteristics of genomic and eSSRs and their potential in genetic analysis of natural and breeding populations and also discusses the future prospects in population genetics and marker assisted selection.Electronic supplementary materialThe online version of this article (doi:10.1186/s40529-014-0073-3) contains supplementary material, which is available to authorized users.

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Section: Reviewmentioning

confidence: 99%

Microsatellite resources of Eucalyptus: current status and future perspectives

Sumathi

Yasodha

2014

Bot Stud

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“…This is also true for constructing genetic linkage maps and determining QTLs based on their characteristics of co-dominance, abundance, wide distribution over the genome, and high level of polymorphisms, transferability and reproducibility (Wang et al 2015 ; Cheng et al 2015 ; Gaudet et al 2008 ; Canli 2004 ; Liu et al 2014 ). Thus, microsatellite markers have been widely applied to the construction of genetic linkage maps in forest trees, such as Eucalyptus grandis (García et al 2011 ), P. cerasus (Canli 2004 ), P. nigra (Gaudet et al 2008 ), P. koraiensis (Chen et al 2010b ), P. abies (Acheré et al 2004 ), P. pinaster (Rittera et al 2002 ), P. elliottii and P. caribaea (Yang et al 2013a ).…”

Section: Introductionmentioning

confidence: 99%

Genetic linkage map construction and QTL mapping of seedling height, basal diameter and crown width of Taxodium ‘Zhongshanshan 302’ × T. mucronatum

et al. 2016

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Taxodium is a genus renowned for its fast growth, good form and tolerance of flooding, salt, alkalinity, disease and strong winds. In this study, a genetic linkage map was constructed using sequence-related amplified polymorphism (SRAP) and simple sequence repeat (SSR) markers based on an F1 population containing 148 individuals generated from a cross between T. ‘Zhongshanshan 302’ and T. mucronatum. The map has a total length of 976.5 cM, with a mean distance of 7.0 cM between markers, and contains 34 linkage groups with 179 markers (171 SRAPs and 8 SSRs). Quantitative trait loci (QTLs) affecting growth traits, such as seedling height, basal diameter and crown width, were detected based on the constructed linkage map. Four significant QTLs were identified, three of which, namely qtSH-1 for seedling height, qtBD-1 for basal diameter and qtCW-1 for crown width, were located at 2.659 cM of LG7 with logarithm odds values of 3.72, 3.49 and 3.93, respectively, and explained 24.9, 27.0 and 21.7 % of the total variation of the three grown traits, respectively. Another QTL for crown width (qtCW-2) was detected at 1.0 cM on LG13, with a logarithm of odds value of 3.15, and explained 31.7 % of the total variation of crown width. This is the first report on the construction of a genetic linkage map and QTL analysis in Taxodium, laying the groundwork for the construction of a high-density genetic map and QTL mapping in the genus Taxodium.

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A genetic linkage map for a Full sib population of Eucalyptus grandisusing SSR, DArT, CG-SSR and EST-SSR markers

Cited by 2 publications

References 5 publications

Microsatellite resources of Eucalyptus: current status and future perspectives

Microsatellite resources of Eucalyptus: current status and future perspectives

Genetic linkage map construction and QTL mapping of seedling height, basal diameter and crown width of Taxodium ‘Zhongshanshan 302’ × T. mucronatum

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