genetic variation for resistance to russian wheat aphid in f2-derived families of wheat (triticum aestivum l.)

نویسندگان

a. arzani

n. l. v. lapitan

چکیده

the russian wheat aphid (rwa), diuraphis noxia (mordvilko), is a significant insect pest of wheat worldwide. the objective of this study was to assess the genetic variation within and between f2-derived families for reaction to rwa using f3 and f4 families originating from individual f2 plants of a cross between the susceptible line (synthetic hexaploid-11) and the resistance cultivar (‘halt’). the rwa damage of individual plants within each family was measured using different procedures. their reaction types were combined into a single data for each individual family (derived from an individual f2 plants) and subjected to statistical analysis. results indicated that the genetic variation between f2-derived families is greater than within f2-derived families for rwa resis-tance. broad-sense heritability of rwa resistance, calculated by partitioning phenotypic variation into genetic and environmental components, was 73.2%. a narrow-sense herita-bility estimate of 30% was obtained for the rwa resistance in the ‘halt’ synthetic hexaploid-11 cross using parent-offspring (f3: f4) regression procedure.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The wheat (Triticum aestivum L.) leaf proteome.

The wheat leaf proteome was mapped and partially characterized to function as a comparative template for future wheat research. In total, 404 proteins were visualized, and 277 of these were selected for analysis based on reproducibility and relative quantity. Using a combination of protein and expressed sequence tag database searching, 142 proteins were putatively identified with an identificat...

متن کامل

Genetic Analysis of Androgenetic Traits in Wheat (Triticum aestivum L.)

The objective of this study was to estimate genetic parameters and to investigate the type of gene action in controlling androgenesis in wheat. Two wheat cultivars of Grebe and Houtman were reciprocally crossed with two synthetic genotypes of Do1 and Pol and then a complete set of the parents, F1, reciprocal F1 (RF1), F2 and back-cross generations (BC1 and BC2) of each cross were used for anthe...

متن کامل

Expression of Potential Resistance Genes to the English Grain Aphid, Sitobion avenae, in Wheat, Triticum aestivum

The English grain aphid, Sitobion avenae (F.) (Homoptera: Aphididae), is a dominant and destructive pest in wheat, Triticum estivum L. (Poales: Poaceae), production regions in China and other grain-growing areas worldwide. Patterns of gene expression of the S. avenae-resistant synthetic wheat line 98-10-35, the S. avenae-susceptible line1376, and their hybrid population, and the differences in ...

متن کامل

Genetic Transformation of Wheat (triticum Aestivum L.) Anther Culture- Derived Embryos by Electroporation

This report describes the delivery of plasmid DNA into wheat anther culture derived embryos. Initial electroporation experiments were conducted using enzyme (NT-1) pretreatment, 500 F capacitance, and plasmid pAM2100, which carries the herbicide resistance gene, bar, and the screenable marker gene, Gus. Electroporated embryos were allowed to recover 10 days on regeneration medium and then trans...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
journal of agricultural science and technology

ناشر: tarbiat modares university

ISSN 1680-7073

دوره 9

شماره Number 1 2010

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023