Genetic Variation for Resistance to Russian Wheat Aphid in F۲-Derived Families of Wheat (Triticum aestivum L.)

  • سال انتشار: 1385
  • محل انتشار: مجله علوم و فناوری کشاورزی، دوره: 9، شماره: 1
  • کد COI اختصاصی: JR_JASTMO-9-1_004
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 88
دانلود فایل این مقاله

نویسندگان

A. Arzani

Agronomy and Plant Breeding Department, College of Agriculture, Isfahan University of Technology, Isfahan, ۸۴۱۵۵, Islamic Republic of Iran.

N. L. V. Lapitan

Soil and Crop Sciences Department, Colorado State University, Fort Collins, CO ۸۰۵۲۳, U.S.A.

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 F۲-derived families for reaction to RWA using F۳ and F۴ families originating from individual F۲ plants of a cross between the susceptible line (synthetic hexaploid-۱۱) 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 F۲ plants) and subjected to statistical analysis. Results indicated that the genetic variation between F۲-derived families is greater than within F۲-derived families for RWA resis-tance. Broad-sense heritability of RWA resistance, calculated by partitioning phenotypic variation into genetic and environmental components, was ۷۳.۲%. A narrow-sense herita-bility estimate of ۳۰% was obtained for the RWA resistance in the ‘Halt’ synthetic hexaploid-۱۱ cross using parent-offspring (F۳: F۴) regression procedure.

کلیدواژه ها

Wheat, Genetic variation, heritability, Insect resistance, Russian wheat aphid

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.