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Genetic linkage between male sterility and non‐spiny trait in safflower ( C arthamus tinctorius L.)
Author(s) -
Kammili Anjani
Publication year - 2013
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.12029
Subject(s) - biology , sterility , carthamus , botany , trait , mendelian inheritance , genetics , gene , medicine , computer science , programming language , traditional medicine
Genetic male sterility ( GMS ) exists naturally in safflower ( Carthamus tinctorius L.). In the existing safflower GMS lines, sterile and fertile plants are distinguishable at flowering. This causes delay in fertile plants rouging and reduction in hybrid purity. In this investigation, a cross between a spiny GMS parent 13‐137 and a spiny non‐ GMS parent ‘A1’ was effected. One sib cross, SC ‐67, producing non‐parental‐type non‐spiny sterile and spiny fertile plants in F 3 was advanced to F 9 through sib crossing between non‐spiny sterile and spiny fertile plants. Mendelian digenic segregation was not observed for non‐spiny trait and male sterility. The results revealed strong linkage between these traits. The linkage was confirmed in F 2 generations of crosses between a non‐spiny marker‐linked GMS line ( MGMS ) and five elite lines. Male sterility–linked non‐spiny trait could distinguish sterile and fertile plants at elongation stage. The MGMS would be useful in production of pure F 1 hybrid seed and development of elite populations.