AN RFLP LINKAGE MAP FOR LOBLOLLY-PINE BASED ON A 3-GENERATION OUTBRED PEDIGREE

被引:84
作者
DEVEY, ME
FIDDLER, TA
LIU, BH
KNAPP, SJ
NEALE, DB
机构
[1] US FOREST SERV,INST FOREST GENET,PACIFIC SW RES STN,BERKELEY,CA 94701
[2] CSIRO,DIV FORESTRY,CANBERRA,ACT 2600,AUSTRALIA
[3] OREGON HLTH SCI UNIV,SCH MED,PORTLAND,OR 97201
[4] N CAROLINA STATE UNIV,DEPT FORESTRY,RALEIGH,NC 27695
[5] OREGON STATE UNIV,DEPT CROP & SOIL SCI,CORVALLIS,OR 97331
关键词
RFLP; GENETIC LINKAGE MAPPING; PINUS TAEDA L;
D O I
10.1007/BF00223631
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
A genetic linkage map for loblolly pine (Pinus taeda L.) was constructed using segregation data from a three-generation outbred pedigree consisting of four grandparents, two parents, and 95 F-2 progeny. The map was based predominantly on restriction fragment length polymorphism (RFLP) loci detected by cDNA probes. Sixty-five cDNA and three genomic DNA probes revealed 90 RFLP loci. Six polymorphic isozyme loci were also scored. One-fourth (24%) of the cDNA probes detected more than 1 segregating locus, an indication that multigene families are common in pines. As many as six alleles were observed at a single segregating locus among grandparents and it was not unusual for the progeny to segregate for three or four alleles per locus. Multipoint linkage analysis placed 73 RFLP and 2 isozyme loci into 20 linkage groups; the remaining 17 RFLP and 4 isozyme loci were unlinked. The mapped RFLP probes provide a new set of codominant markers for genetic analyses in loblolly pine.
引用
收藏
页码:273 / 278
页数:6
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