caa a22 4500 477134319 CHVBK 20180405111713.0 cr unu---uuuuu 170330e19970901xx s 000 0 eng 10.1023/A:1003036905248 doi (NATIONALLICENCE)springer-10.1023/A:1003036905248 Inheritance of host plant effect on latent period of wheat leaf rust in single-seed descent F8 lines [Elektronische Daten] [D.J. van der Gaag, Th. Jacobs] Latent period (LP) and infection type (IT) were determined in single-seed descent F8 wheat lines from the crosses Westphal 12A (PR = partially resistant) × BH1146 (PR), Akabozu (PR) × BH1146 (PR), and BH1146 (PR) × Little Club (susceptible), inoculated with the Flamingo isolate of the wheat leaf rust pathogen. Each parental line showed a significantly longer LP than the highly susceptible standard Morocco indicating that each parent carried at least one LP-prolonging gene. Significant transgression was found for shorter LP in each cross, indicating that BH1146 differed from Westphal 12A, Akabozu, and Little Club at least partly in genes affecting LP. Significant transgression for longer LP was observed only in the cross Akabozu × BH1146 in one F8 line. In each cross, significantly more lines were found that showed a shorter LP than the most susceptible parent, than lines that showed a longer LP than the most resistant parent, indicating non-additive gene effects on LP. BH1146 was estimated to carry at least five genes which are involved in prolonging the LP. LP and IT were negatively correlated. Correlation coefficients were low and lines were present showing similar ITs but different LPs which suggested that collapse of host plant cells could not be the only reason for growth retardation of colonies of the wheat leaf rust pathogen. Kluwer Academic Publishers, 1997 latent period nationallicence partial resistance nationallicence Puccinia recondita f. sp. tritici nationallicence wheat leaf rust nationallicence van der Gaag D.J. Department of Plant Breeding, Wageningen Agricultural University, P.O. Box 386, 6700 AJ, Wageningen, the Netherlands aut Jacobs Th Department of Plant Breeding, Wageningen Agricultural University, P.O. Box 386, 6700 AJ, Wageningen, the Netherlands aut Euphytica Kluwer Academic Publishers 97/1(1997-09-01), 67-72 0014-2336 97:1<67 1997 97 10681 https://doi.org/10.1023/A:1003036905248 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1003036905248 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- van der Gaag D.J. Department of Plant Breeding, Wageningen Agricultural University, P.O. Box 386, 6700 AJ, Wageningen, the Netherlands aut NATIONALLICENCE 700 1- Jacobs Th Department of Plant Breeding, Wageningen Agricultural University, P.O. Box 386, 6700 AJ, Wageningen, the Netherlands aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 97/1(1997-09-01), 67-72 0014-2336 97:1<67 1997 97 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer