Characteristics of Fruiting and Pollen Tube Growth of Apple Autotetraploid Cultivars Showing Self-compatibility
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- Adachi Yoshiteru
- Faculty of Agriculture, Iwate University
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- Komori Sadao
- Faculty of Agriculture, Iwate University
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- Hoshikawa Yoshimasa
- Faculty of Agriculture, Iwate University
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- Tanaka Norimitsu
- Faculty of Agriculture, Iwate University
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- Abe Kazuyuki
- Apple Research Station, National Institute of Fruit Tree Science
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- Bessho Hideo
- Apple Research Station, National Institute of Fruit Tree Science
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- Watanabe Manabu
- Field Science Center, Faculty of Agriculture, Iwate University
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- Suzuki Akira
- Faculty of Agriculture, Iwate University
Bibliographic Information
- Other Title
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- 自家和合性を示すリンゴ同質四倍体品種の結実特性と花粉管伸長特性
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Abstract
Apples (Malus × domestica Borkh.) have gametophytic self-incompatibility (SI). Generally, the polyploidy breaks down gametophytic SI; however, there is little data on apples. In this study, we collected basic data on the self-compatibility (SC) mechanism of apple autotetraploid cultivars and polyploid mutants of original diploid cultivars. The autotetraploids showed self-fertility, and their pollen was compatible with the pistils of their original diploid cultivars, which share two S-alleles. However, the original diploid cultivars’ pollen was incompatible with the pistils of autotetraploid cultivars. Although the pollen of autotetraploid cultivars induced SC, the fruit set percentage and seed number were lower when autotetraploid cultivars were selfed or used as pollen parents in the pistils of the original diploid cultivars than in compatible diploid cross-combinations. The pollen tubes of autotetraploid cultivars grew significantly further than those of the selfed diploid cultivars, but grew significantly slower than in compatible diploid cross-combinations. These results show that the pollen of apple autotetraploid cultivars induced SC but maintained partial incompatibility.<br>
Journal
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- Journal of the Japanese Society for Horticultural Science
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Journal of the Japanese Society for Horticultural Science 78 (4), 402-409, 2009
THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE
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Details 詳細情報について
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- CRID
- 1390282680265650176
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- NII Article ID
- 130004951585
- 120001904616
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- NII Book ID
- AA12177046
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- ISSN
- 1882336X
- 18823351
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- NDL BIB ID
- 10402819
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed