1997 Fiscal Year Final Research Report Summary
Study on the identification of genes related to self-incompatibility and the alleric diversity in Citrus
| Project/Area Number |
07456021
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
園芸・造園学
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| Research Institution | KYUSYU UNIVERSITY |
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Principal Investigator |
WAKANA Akira Kyushu University, Faculty of Agriculture, associate professor, 農学部, 助教授 (10158579)
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| Project Period (FY) |
1995 – 1997
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| Keywords | Self-incompatibility / Self-incompatibility gene / Semi-self-comoatibility / Semi-cross-compatibility / GOT isozymes / Linkage / Pollen tube / Recombination value |
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| Research Abstract |
Many Citrus cultivars and accessions were used for various crosses to obtain the progenies GOT isozyme analysis was carried out using the leaf of these progenies. Linkage analyses for Got-1/Got-2, Got-1/Got-3 and Got-2/Got-3 indicated that the three gene pairs did not appear to be closely linked. Out of 32 crosses, distorted single-gene segregation ratios in the progenies were found in four crosses for Got-1, three for Got-2 and ten for Got-3. Amarked deficiency of certain GOT-1 and GOT-3 genotypes in the crosses between unrelated cultivars was attributed to the relatively close linkage (r=0.30*0.05) of Got-1 with the incmpatibility Z locus and the same intensity of linkage (r=0.30*0.05) of Got-3 with the incompatibility S locus. Although it was not obvious whether or not the Z and S loci were the same incompatibility gene loci, the two genes were considered to be different genes by some evidences. Incompatibility genotypes were proposed for several cultivars together with linked Got-1 or Got-3 alleles. A total of 4 allels for Z gene and 7 allels for S gene were found in pumelo and its related hybrid cultivars.
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Research Products
(6 results)
