Northwest Normal University Institutional Repository （NWNU_IR）
| HT proteins contribute to S-RNase-independent pollen rejection in Solanum | |
Tovar-Mendez, Alejandro1; Lu, Lu1,2 ; McClure, Bruce1
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| 2017-02-01 | |
| 发表期刊 | Plant Journal
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| ISSN | 0960-7412 |
| 卷号 | 89期号:4页码:718-729 |
| 摘要 | Plants have mechanisms to recognize and reject pollen from other species. Although widespread, these mechanisms are less well understood than the self-incompatibility (SI) mechanisms plants use to reject pollen from close relatives. Previous studies have shown that some interspecific reproductive barriers (IRBs) are related to SI in the Solanaceae. For example, the pistil SI proteins S-RNase and HT protein function in a pistil-side IRB that causes rejection of pollen from self-compatible (SC) red/orange-fruited species in the tomato clade. However, S-RNase-independent IRBs also clearly contribute to rejecting pollen from these species. We investigated S-RNase-independent rejection of Solanum lycopersicum pollen by SC Solanum pennellii LA0716, SC. Solanum habrochaites LA0407, and SC Solanum arcanum LA2157, which lack functional S-RNase expression. We found that all three accessions express HT proteins, which previously had been known to function only in conjunction with S-RNase, and then used RNAi to test whether they also function in S-RNase-independent pollen rejection. Suppressing HT expression in SC S. pennellii LA0716 allows S. lycopersicum pollen tubes to penetrate farther into the pistil in HT suppressed plants, but not to reach the ovary. In contrast, suppressing HT expression in SC. Solanum habrochaites LA0407 and in SC S. arcanum LA2157 allows S. lycopersicum pollen tubes to penetrate to the ovary and produce hybrids that, otherwise, would be difficult to obtain. Thus, HT proteins are implicated in both S-RNase-dependent and S-RNase-independent pollen rejection. The results support the view that overall compatibility results from multiple pollen–pistil interactions with additive effects. © 2016 The Authors The Plant Journal © 2016 John Wiley & Sons Ltd |
| 关键词 | Fruits Proteins Reproductive barriers Solanum arcanum Solanum habrochaites Solanum lycopersicum Solanum pennellii tomato |
| DOI | 10.1111/tpj.13416 |
| 收录类别 | EI ; SCIE |
| 语种 | 英语 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| WOS记录号 | WOS:000395802500006 |
| 出版者 | Blackwell Publishing Ltd |
| EI入藏号 | 20170803364943 |
| EI主题词 | Plants (botany) |
| EI分类号 | 804.1 Organic Compounds ; 821.4 Agricultural Products |
| 原始文献类型 | Journal article (JA) |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.nwnu.edu.cn/handle/39RV6HYL/31664 |
| 专题 | 实体学院_生命科学学院 人力资源交流中心 机关部门（群众团体）_人力资源交流中心 |
| 通讯作者 | McClure, Bruce |
| 作者单位 | 1.Univ Missouri, Div Biochem, 117 Schweitzer Hall, Columbia, MO 65211 USA; 2.Northwest Normal Univ, Coll Life Sci, 967 Anning East Rd, Lanzhou 730070, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tovar-Mendez, Alejandro,Lu, Lu,McClure, Bruce. HT proteins contribute to S-RNase-independent pollen rejection in Solanum[J]. Plant Journal,2017,89(4):718-729. |
| APA | Tovar-Mendez, Alejandro,Lu, Lu,&McClure, Bruce.(2017).HT proteins contribute to S-RNase-independent pollen rejection in Solanum.Plant Journal,89(4),718-729. |
| MLA | Tovar-Mendez, Alejandro,et al."HT proteins contribute to S-RNase-independent pollen rejection in Solanum".Plant Journal 89.4(2017):718-729. |
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| Tovar-Mendez-2017-HT（2227KB） | 期刊论文 | 开放获取 | CC BY-NC-SA | 浏览 下载 | ||
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