Genetic Improvement of Rice for Disease Resistance Using Gamma Rays

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35,90 

Genetic Improvement of Rice Resistance to Blast and Bakanae Diseases Using Mutation Breeding and Molecular Markers

ISBN: 6133995742
ISBN 13: 9786133995741
Autor: Hassan, Ibrahim/Soliman, Mohamed/Ragab, Abdel-Shafy
Verlag: LAP LAMBERT Academic Publishing
Umfang: 76 S.
Erscheinungsdatum: 21.01.2018
Auflage: 1/2018
Format: 0.5 x 22 x 15
Gewicht: 131 g
Produktform: Kartoniert
Einband: KT
Artikelnummer: 3573271 Kategorie:

Beschreibung

Rice diseases are one of the major limiting factors of rice production worldwide specially, blast (Magnaporthae grisea) and bakanae (Fusarium moniliforme) diseases. Therefore, this study was conducted to improve rice for resistance to blast and bakanae diseases as well as yield and yield related traits using gamma rays and molecular markers. Rice grains were irradiated with different doses of gamma rays (150, 200, 250, 300 Gy). Eleven rice mutants were selected and evaluated for resistance to blast and bakanae diseases under natural and artificial infection conditions. Only nine mutants were resistance to either diseases or one of them. Molecular screening of resistance (R) genes to blast and bakanae diseases were performed for the selected mutants and its parents using molecular markers. The results showed that blast resistant mutants have a combination of partial and complete resistance genes that confer durable resistance to all blast races. Therefore, molecular markers are powerful tools in increasing the effectiveness of selection in breeding programs. Also, mutation breeding is very effective approach to develop new resistant genotypes to blast and bakanae disease in rice.

Autorenporträt

Dr. Ibrahim Hassan has been working in Nuclear Research Center, Egyptian Atomic Energy Authority since 2004. He has completed his M.Sc. and Ph.D. degrees in Genetics from Faculty of Agriculture, Cairo University, Egypt. He worked on crops improvement for disease resistance using mutation breeding and molecular genetics.

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