HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (33) Citing Articles via Google Scholar Google Scholar Articles by Tekeoglu, M. Articles by Muehlbauer, F. J. Search for Related Content PubMed Articles by Tekeoglu, M. Articles by Muehlbauer, F. J. Agricola Articles by Tekeoglu, M. Articles by Muehlbauer, F. J.

CROP BREEDING, GENETICS & CYTOLOGY

Ascochyta Blight Resistance Inheritance in Three Chickpea Recombinant Inbred Line Populations

^a USDA-ARS, 303 W. Johnson Hall, Washington State University, Pullman, WA 99164-6434 USA
^b USDA-ARS, 59 Johnson Hall, Washington State Univ., Pullman, WA 99164-6402 USA

muehlbau{at}wsu.edu

Ascochyta blight (caused by Ascochyta rabiei [Pass] Labr.) is a devastating and widespread disease of chickpea (Cicer arietinum L.). Studies of the genetics of resistance to blight have generated inconsistent reports due to year to year and between location variation in screening trial results. Most previous studies have relied on F₂ or backcross populations for segregation analyses; however, inheritance patterns have been difficult to confirm because of the inability to repeat the evaluations in time and space. The objective of this study was to determine the inheritance of resistance to ascochyta blight in chickpea using recombinant inbred line (RIL) populations. The RILs were derived from two intraspecific crosses, PI 359075(1) x FLIP 84-92C(2), `Blanco Lechoso' x `Dwelley', and one interspecific cross, FLIP 84-92C(3) x C. reticulatum Lad. (PI 599072). The resistant parents, FLIP 84-92C and Dwelley, had a common source of resistance derived from ILC-72. Disease reactions of the parents and RILs were scored using a 1 to 9 scale and also by using the area under the disease progress curve (AUDPC). Segregation among RILs indicated that three recessive and complementary major genes with several modifiers conferred ascochyta blight resistance. Absence of one or two of the major genes confers susceptibility, whereas the presence of the modifiers determines the degree of resistance.

Abbreviations: AUDPC, area under the disease progress curve • QTL, quantitative trait loci • RIL, recombinant inbred line

This article has been cited by other articles:

				R. Zhang, S.-F. Hwang, B. D. Gossen, K.-F. Chang, and G. D. Turnbull A Quantitative Analysis of Resistance to Mycosphaerella Blight in Field Pea Crop Sci., January 22, 2007; 47(1): 162 - 167. [Abstract] [Full Text] [PDF]

				D. K. Santra, M. Tekeoglu, M. Ratnaparkhe, W. J. Kaiser, and F. J. Muehlbauer Identification and Mapping of QTLs Conferring Resistance to Ascochyta Blight in Chickpea Crop Sci., November 1, 2000; 40(6): 1606 - 1612. [Abstract] [Full Text] [PDF]