PDF(4474 KB)
Breeding System and Hybridization Affinity of Rhododendron irroratum
Wenyan XIONG, Yawen WU, Tian BAI, Weijia XIE, Yan DONG, Jingli ZHANG
PDF(4474 KB)
PDF(4474 KB)
Breeding System and Hybridization Affinity of Rhododendron irroratum
)To protect germplasm resources and provide technical support for native garden species， the breeding system and hybrid affinity of wild Rhododendron irroratum were studied. The experiments included flowering biological characteristics， the characteristics of breeding system and the cross pollination with fine horticultural varieties of Rhododendron. The process of pollen germination and pollen tube growth were observed by fluorescence microscope， and the fruiting and seed setting were calculated. The results showed that （1） the flowering time of R. irroratum dewdrop was from late April to late May， and pollen viability and stigma receptivity decreased gradually with the extension of flowering time. （2）Hybridization index（OCI） was 3， P/O value was 343.47. （3）The main pollinator was Apis cerana. The breeding system was facultative outbred， self-compatible， requiring pollinators. （4）No apomixis was found in artificial pollination， which could automatically self-pollinate. The fruit setting rates of different strains cross-pollination， strains cross-pollination and self-pollination were 46.96%， 45.03% and 37.16% respectively. The average fruit setting rate of artificial pollination was basically consistent with that of natural pollination. （5）The hybrid incompatibility was observed in the parent for artificial cross pollination. Fluorescence microscopy revealed callose embolism in the pollen tube of the mother， which prevented the tube from extending to the ovary. Through observation， it is found that the difficulty of cross compatibility lies in pollen tube growth process.
Rhododendron irroratum / breeding system / hybridization affinity / fluorescence microscopy
S685.21
| 1 | 何亚平，刘建全.植物繁育系统研究的最新进展和评述［J］.植物生态学报，2003，27（2）：151-163. |
| 1 | HE Y P， LIU J Q.A review on recent advances in the studies of plant breeding system［J］.Chinese Journal of Plant Ecology，2003，27（2）：151-163. |
| 2 | 牟勇，张云红，娄安如.稀有植物小丛红景天花部综合特征与繁育系统［J］.植物生态学报，2007，31（3）：528-535. |
| 2 | MOU Y， ZHANG Y H， LOU A R.A preliminary study on floral syndroma and breeding system of the rare plant Rhodiola dumulosa［J］.Chinese Journal of Plant Ecology，2007，31（3）：528-535. |
| 3 | 张敬丽，张长芹，吴之坤，等.探讨种间传粉在杜鹃花属自然杂交物种形成中的作用［J］.生物多样性，2007，15（6）：658-665. |
| 3 | ZHANG J L， ZHANG C Q， WU Z K，et al.The potential roles of interspecific pollination in natural hybridization of Rhododendron species in Yunnan，China［J］.Biodiversity Science，2007，15（6）：658-665. |
| 4 | STOUT J C.Pollination of invasive Rhododendron ponticum（Ericaceae） in Ireland［J］.Apidologie，2007，38（2）：198-206. |
| 5 | MU J P， PENG Y H， NIKLAS K J，et al.The optimization of seed yield across the flowering season of Gentiana leucomelaena（Gentianaceae），an herbaceous Tibetan annual［J］.Arctic，Antarctic，and Alpine Research，2014，46（3）：548-557. |
| 6 | WHEELWRIGHT N T， DUKESHIRE E E， FONTAINE J B，et al.Pollinator limitation，autogamy and minimal Inbreeding depression in insect-pollinated plants on a boreal island［J］.The American Midland Naturalist，2006，155（1）：19-38. |
| 7 | JAIN A， PANDIT M K， ELAHI S，et al.Reproductive behaviour and genetic variability in geographically isolated populations of Rhododendron arboreum（Ericaceae）［J］.Current Science，2000，79（9）：1377-1381. |
| 8 | 白天，关文灵，宋杰，等.锈叶杜鹃的开花特性及繁育系统研究［J］.西部林业科学，2014，43（1）：47-53. |
| 8 | BAI T， GUAN W L， SONG J，et al.Flowering characteristics and breeding system of Rhododendron siderophyllum ［J］.Journal of West China Forestry Science，2014，43（1）：47-53. |
| 9 | 谢孟，马永鹏，曹毓蓉，等.极小种群野生植物波叶杜鹃的花部特征和繁育系统研究［J］.云南农业大学学报（自然科学版），2023，38（1）：95-103. |
| 9 | XIE M， MA Y P， CAO Y R，et al.Research on floral syndrome and breeding systems of Rhododendron hemsleyanum，a plant species with extremely small populations［J］.Journal of Yunnan Agricultural University （Natural Science），2023，38（1）：95-103. |
| 10 | 解玮佳，王继华，彭绿春，等.大白杜鹃与露珠杜鹃杂交亲和性及其杂交果实发育动态研究［J］.江西农业大学学报，2016，38（1）：90-96. |
| 10 | XIE W J， WANG J H， PENG L C，et al.The compatibility and fruit growth dynamics of the cross between Rhododendron decorum and R. irroratum ［J］.Acta Agriculturae Universitatis Jiangxiensis，2016，38（1）：90-96. |
| 11 | 胡德美，董溪，吴江明，等.不同生境三种杜鹃属植物花特征比较［J］.广西植物，2022，42（1）：161-173. |
| 11 | HU D M， DONG X， WU J M，et al.Comparison of floral traits of three Rhododendron species in different habitats［J］.Guihaia，2022，42（1）：161-173. |
| 12 | 耿兴敏，张超仪，尹增芳.部分野生杜鹃杂交授粉后花粉管生长状况分析［J］.安徽大学学报（自然科学版），2014（4）：94-101. |
| 12 | GENG X M， ZHANG C Y， YIN Z F.Analysis of pollen tube growth after pollination in some wild Rhododendron ［J］.Journal of Anhui University（Natural Science Edition），2014（4）：94-101. |
| 13 | 李鸿彦，李冬梅，宋杰，等.爆杖花和红马银花的杂交亲和性分析［J］.江西农业学报，2023，35（2）：42-46. |
| 13 | LI H Y， LI D M， SONG J，et al.Analysis of cross compatibility between Rhododendron spinuliferum and Rhododendron vialii ［J］.Acta Agriculturae Jiangxi，2023，35（2）：42-46. |
| 14 | DAFNI A.Pollination ecology：a practical approach［J］.Brittonia，1994，46（2）：155-156. |
| 15 | CRUDEN R W.Pollen-ovule ratios：a conservative indicator of breeding systems in flowering plants［J］.Evolution，1977，31（1）：32-46. |
| 16 | ESCARAVAGE N， WAGNER J.Pollination effectiveness and pollen dispersal in a Rhododendron ferrugineum（Ericaceae） population［J］.Plant biology（Stuttgart，Germany），2004，6（5）：606-615. |
| 17 | ONO A， DOHZONO I， SUGAWARA T.Bumblebee pollination and reproductive biology of Rhododendron semibarbatum（Ericaceae）［J］.Journal of Plant Research，2008，121（3）：319-327. |
| 18 | AI-PING J， FEI W， CHUN-CHAO Y，et al.Interspecific and intraspecific cross compatibility of kiwi fruits’［J］.Acta Botanica Boreali-Occidentalia Sinica，2010，30（9）：1809-1814. |
| 19 | WILLIAMS E G， KNOX R B， ROUSE J L.Pollination sub-systems distinguished by pollen tube arrest after incompatible interspecific crosses in Rhododendron（Ericaceae）［J］.Journal of Cell Science，1982，53（1）：255-277. |
| 20 | 解玮佳，李世峰，瞿素萍，等.常绿杜鹃不同杂种群间杂交的可育性分析［J］.园艺学报，2019，46（5）：910-922. |
| 20 | XIE W J， LI S F， QU S P，et al.Cross fertility of the crosses between Rhododendron different hybrids groups［J］.Acta Horticulturae Sinica，2019，46（5）：910-922. |
| 21 | WILLIAMS E G， ROUSE J L.Relationships of pollen size，pistil length and pollen tube growth rates in Rhododendron and their influence on hybridization［J］.Sexual Plant Reproduction，1990，3（1）：7-17. |
| 22 | 庄平.10种杜鹃亚属植物种间杂交的可育性研究［J］.广西植物，2018，38（12）：1558-1565. |
| 22 | ZHUANG P.Cross fertility of intra-subgen.Rhododendron of 10 Rhododendron species［J］.Guihaia，2018，38（12）：1558-1565. |
| 23 | EECKHAUT T， DE KEYSER E， VAN HUYLENBROECK J，et al.Application of embryo rescue after interspecific crosses in the genus Rhododendron ［J］.Plant Cell，Tissue & Organ Culture，2007，89（1）：29-35. |
/
| 〈 |
|
〉 |
AI Summary
