2013 Fiscal Year Final Research Report
Breakdown of Self- and Cross-incompatibility of Sweet Potato
| Project/Area Number |
23580005
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Breeding science
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| Research Institution | Mie University |
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Principal Investigator |
TSUCHIYA Tohru 三重大学, 生命科学研究支援センター, 准教授 (30293806)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 植物育種・遺伝 / 植物分子育種 / 遺伝子・タンパク質 / 植物ゲノム情報 |
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| Research Abstract |
Cultivated sweet potato (Ipomoea batatas) species/cultivars carry cross-incompatibility mechanism; therefore efficient cross breeding is not achieved. This cross-incompatibility of I.batatas is based on the self-incompatibility system of wild type diploid species (I.trifida) which related to cultivated sweet potato, so the research on self-incompatibility of I.trifida, will directly reflect on the breakdown of cross-incompatibility of I.batatas. In this research, we determine the male-part S-gene of I.trifida by bioassay, in which applying male-S-gene product on the surface of stigma upon pollination, and we identified female-S-candidate genes. Function of these S-gene and S-candidate genes were verified by homology search against DNA and protein databases on the net. However, Breakdown the cross- and self-incompatibility of sweet potato is not achieved by GM and non-GM ways.
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[Journal Article] Sexual reproduction is the default mode in apomictic Hieracium subgenus Pilosella, in which two dominant loci function to enable apomixis2011
Author(s)
Koltunow A.M., Johnson S.D., Rodrigues J.C.M., Okada T., Hu Y., Tsuchiya T., Wilson S., Fletcher P., Ito K., Suzuki G., Mukai Y., Bicknell R.A
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Journal Title
Plant Journal
Volume: 66
Pages: 890-902
Peer Reviewed
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