TY - JOUR
T1 - Development of molecular markers using MFLP linked to a gene conferring resistance to Diaporthe Toxica in narrow-leafed lupin (Lupinus angustifolius L.)
AU - Yang, H.
AU - Shankar, Manisha
AU - Buirchell, B.J.
AU - Sweetingham, M.W.
AU - Caminero, C.
AU - Smith, P.M.C.
PY - 2002
Y1 - 2002
N2 - Phomopsis stem blight (PSB) caused by Diaporthe toxica is a major disease in narrow-leafed lupin (Lupinus angustifolius L.). The F-2 progeny and the parental plants from a cross between a breeding line 75A:258 (containing a single dominant resistance gene Phr1 against the disease) and a commercial cultivar Unicrop (susceptible to the disease) were used for development of molecular markers linked to the disease resistance gene. Two pairs of co-dominant DNA polymorphisms were detected using the microsatellite-anchored fragment length polymorphism (MFLP) technique. Both pairs of polymorphisms were isolated from the MFLP gels, re-amplified by PCR, sequenced, and converted into co-dominant, sequence-specific and PCR-based markers. Linkage analysis by MAPMAKER suggested that one marker (Ph258M2) was 5.7 centiMorgans (cM) from Phr1, and the other marker (Ph258M1) was 2.1 cM from Ph258M2 but further away from Phr1. These markers are suitable for marker-assisted selection (MAS) in lupin breeding.
AB - Phomopsis stem blight (PSB) caused by Diaporthe toxica is a major disease in narrow-leafed lupin (Lupinus angustifolius L.). The F-2 progeny and the parental plants from a cross between a breeding line 75A:258 (containing a single dominant resistance gene Phr1 against the disease) and a commercial cultivar Unicrop (susceptible to the disease) were used for development of molecular markers linked to the disease resistance gene. Two pairs of co-dominant DNA polymorphisms were detected using the microsatellite-anchored fragment length polymorphism (MFLP) technique. Both pairs of polymorphisms were isolated from the MFLP gels, re-amplified by PCR, sequenced, and converted into co-dominant, sequence-specific and PCR-based markers. Linkage analysis by MAPMAKER suggested that one marker (Ph258M2) was 5.7 centiMorgans (cM) from Phr1, and the other marker (Ph258M1) was 2.1 cM from Ph258M2 but further away from Phr1. These markers are suitable for marker-assisted selection (MAS) in lupin breeding.
U2 - 10.1007/s00122-002-0925-1
DO - 10.1007/s00122-002-0925-1
M3 - Article
SN - 0040-5752
VL - 105
SP - 265
EP - 270
JO - Theoretical and Applied Genetics
JF - Theoretical and Applied Genetics
ER -