About the RUFORUM 2010 Biennal Conference
"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholders in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme of Plant Breeding"
Introgressing resistance to Turcicum leaf blight and mapping of associated quantitative trait loci in sorghum
Abstract:
Screening for Turcicum leaf blight was carried out in F2 and
F2:3 segregating sorghum populations under field and controlled
conditions. Disease severity as a percentage of leaf area
covered by lesions was computed and the lesion type was
characterized. The disease severity of F2 plants indicated a
major dominant gene for resistance while F2:3 disease scores
suggested quantitative inheritance. The two lesion types
segregated monogenically among the F2:3 lines. Single marker
analysis showed that the major gene for the resistance to
Turcicum leaf blight is probably located close to the sorghum
plant’s locus for colour and to Xtxp95 in the sixth chromosome
in the sorghum genome map.
Le test de dépistage pour la rouille de feuille de Turcicum a été
effectué dans les populations de sorgho F2 et F2:3 séparées sur
le champ et dans les conditions controlées. La sévérité de la
maladie, prise comme le pourcentage de la surface de la feuille
couverte par des lésions, a été calculée et le type de lésion a
été caractérisé. La sévérité de la maladie des plantes F2 a
indiqué un gène dominant important pour la résistance tandis
que les présents résultats de la maladie de F2:3 ont suggéré une
transmission de caractère quantitative. Les deux types de lésion
se sont isolés d’une manière controlée par un seul gène parmi
les lignées F2:3. L’analyse du marqueur simple a prouvé que le
gène principal pour la résistance à la rouille de feuille de
Turcicum est probablement situé près de la position du gène de
la plante de sorgho pour la couleur et à Xtxp95 dans le sixième
chromosome dans la représentation du génome du sorgho.
Language:
English
Date of publication:
2010
Country:
Region Focus:
East Africa
Collection:
RUFORUM Conferences and Workshops
Agris Subject Categories:
Agrovoc terms:
Additional keywords:
Licence conditions:
Open Access
Access restriction:
Form:
Printed resource
Publisher:
ISSN:
E_ISSN:
Edition:
Extent:
463-467
Notes:
