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Mapping seedling resistance to net form of net blotch ( P yrenophora teres f. teres ) in barley using detached leaf assay
Author(s) -
König Janine,
Perovic Dragan,
Kopahnke Doris,
Ordon Frank
Publication year - 2014
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/pbr.12147
Subject(s) - biology , quantitative trait locus , population , locus (genetics) , hordeum vulgare , chromosome , genetics , microbiology and biotechnology , gene , poaceae , botany , demography , sociology
To develop molecular markers against P yrenophora teres f. teres in barley, a detached leaf assay was conducted on two DH populations with a set of 11 single conidial lines ( SCL s). Out of these, three showed different reactions in the DH population ‘ U schi × HHOR 3073’ and two in ‘( P x V ) × HHOR 9484’. For SCL ‘ QLB ’, a 1r : 1s ( χ ² = 2.78) segregation was observed in the population ‘ U schi × HHOR 3073’. In contrast to this, a continuous variation was observed for the SCL ‘ W v B ’ and ‘d8_4’ in the DH population ‘ U schi × HHOR 3073’ and for ‘ AR ’ and ‘net1840’ in ‘( P × V ) × HHOR 9484’. With respect to resistance to the SCL ‘ QLB ’, a single major gene was located on chromosome 7 H, and for resistance against SCL ‘ W v B ’, two QTL s were detected on chromosome 3 H and 7 H, and against SCL ‘d8_4’, two loci were mapped on chromosome 3 HS in ‘ U schi × HHOR 3073’. In the DH population ‘( P x V ) × HHOR 9484’, one locus conferring resistance to the SCL ‘ AR ’ was located on chromosome 3 H . For resistance to SCL ‘net1840’, two QTL s were mapped on chromosome 4 H and 5 H .