Home Publications Tree Improvement and Genetics North Central Tree Improvement Conference 2nd North Central Tree Improvement Conference (1981) Allozymes of Linked Loci Segregate Normally in Seeds of an Austrian X Japanese Red Pine Hybrid

Allozymes of Linked Loci Segregate Normally in Seeds of an Austrian X Japanese Red Pine Hybrid

An F1 Pinus nigra and P. densiflora hybrid was polymorphic for seven enzyme loci. Data from haploid female gametophytes of the hybrid established that four of the seven loci were linked in one block. Three loci segregated independently: acid phosphatase 1, glutamic oxaloacetic transaminase 3, and glucose-6- phosphate dehydrogenase 1/2. The linked loci were alcohol dehydrogenase 1, alcohol dehydrogenase 2, glucose-6-phosphate dehydrogenase 2, and leucine aminopeptidase 2, arranged in that order. The recombination percentages between linked loci were 9, 12, and 14, respectively. The order and recombination percentages of the linked loci were similar to values reported for P. sylvestris , another pine in the subsection Sylvestres and other species in Pinus . The hybrid provides a means of enriching genetic variability by producing allelic combinations that do not exist in natural populations.


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Author(s): M. Thompson Conkle, James J. Tobolski

Publication: Tree Improvement and Genetics - North Central Tree Improvement Conference - 1981

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