Alfenas, Acelino C

Coutinho, Marcelo M

Faria, Danielle A

Grattapaglia, Dario

Guimarães, Lúcio MS

Neto, Braz Cápua

Zarpelon, Talyta G

English

PubMed

Talyta G Zarpelon

Lúcio MS Guimarães

Marcelo M Coutinho

Braz Cápua Neto

Danielle A Faria

Dario Grattapaglia

Acelino C Alfenas

Springer - Publisher Connector

QTL associated with resistance to defoliation (Cylindrocladium pteridis) in Eucalyptus spp.

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BMC Proceedings

Zarpelon Talyta G

Guimarães Lúcio MS

Coutinho Marcelo M

Neto Braz Cápua

Faria Danielle A

Grattapaglia Dario

Alfenas Acelino C

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QTL associated with resistance to defoliation <it>(Cylindrocladium pteridis)</it> in <it>Eucalyptus spp.</it>

POSTER PRESENTATION Open Access
QTL associated with resistance to defoliation
(Cylindrocladium pteridis) in Eucalyptus spp.
Talyta G Zarpelon1, Lúcio MS Guimarães1*, Marcelo M Coutinho2, Braz Cápua Neto1, Danielle A Faria3,
Dario Grattapaglia3, Acelino C Alfenas1
From IUFRO Tree Biotechnology Conference 2011: From Genomes to Integration and Delivery
Arraial d’Ajuda, Bahia, Brazil. 26 June - 2 July 2011
Leaf blight and defoliation caused by Cylindrocladium
pteridis is one of the main leaf diseases found in Brazi-
lian eucalypt plantations in warm and high rainfall
regions. The inter and intraspecific variability in the
intensity of defoliation indicate that your control can be
achieved by planting resistant genotypes. In order to
guide breeding programs and to predict the stability of
resistance is essential to understand the genetic control
of resistance in eucalypts to defoliation. Thus, the objec-
tives of this paper were to map QTLs (Quantitative
Trait Loci) associated with resistance to defoliation in a
Eucalyptus urophylla x E. camaldulensis (EU11 x EC06)
family and validate microsatellite markers linked to
QTLs in four unrelated pedigrees involving different
Eucalyptus species. Defoliation was evaluated on the
branches of the lower third of the plants inoculated
under controlled conditions. We identified five QTLs
for resistance to defoliation (Rd), three on the map of
the parental EU11, Rd-1 and Rd-2 located on linkage
group (LG) 1 and Rd-4 located on LG6; and two QTLs
located on the map of the parental EC06, present in
LG2 (Rd-3) and LG8 (Rd-5). Markers linked to QTLRd-
2 were validated in two unrelated families by simple lin-
ear regression analysis. This is the first genomic map of
QTLs associated with resistance to defoliation caused by
C. pteridis in Eucalyptus.
Author details
1Universidade Federal de Viçosa, Brazil. 2Clonar Resistência a Doenças
Florestais, Brazil. 3Embrapa Cenargen, Brazil.
Published: 13 September 2011
doi:10.1186/1753-6561-5-S7-P27
Cite this article as: Zarpelon et al.: QTL associated with resistance to
defoliation (Cylindrocladium pteridis) in Eucalyptus spp.. BMC Proceedings
2011 5(Suppl 7):P27.
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* Correspondence: luciomsguimaraes@yahoo.com.br
1Universidade Federal de Viçosa, Brazil
Full list of author information is available at the end of the article
Zarpelon et al. BMC Proceedings 2011, 5(Suppl 7):P27
http://www.biomedcentral.com/1753-6561/5/S7/P27
© 2011 Zarpelon et al; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons
Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in
any medium, provided the original work is properly cited.


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QTL associated with resistance to defoliation (Cylindrocladium pteridis) in Eucalyptus spp.

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