GSTDTAP  > 气候变化
DOI10.1016/j.foreco.2018.12.038
Overlapping flowering periods among Shorea species and high growth performance of hybrid seedlings promote hybridization and introgression in a tropical rainforest of Singapore
Kenzo, Tanaka1; Kamiya, Koichi2,3; Ngo, Kang Min2,4; Faizu, Nik2; Lum, Shawn Kaihekulani Yamauchi2,4; Igarashi, Shuichi5; Norichika, Yuki6; Ichie, Tomoaki6
2019-03-01
发表期刊FOREST ECOLOGY AND MANAGEMENT
ISSN0378-1127
EISSN1872-7042
出版年2019
卷号435页码:38-44
文章类型Article
语种英语
国家Japan; Singapore
英文摘要

A considerable extent of interspecific hybridization among dominant canopy dipterocarp species was recently found in a tropical rain forest fragment in Singapore. However, information about the fertility of the hybrids and the growth of their successive hybrids remains limited. We studied the flowering phenology of four dipterocarp species in the genus Shorea (S. curtisii, S. leprosula, S. parvifolia, and S. macroptera) and two hybrids (S. curtisii x S. leprosula and S. leprosula x S. parvifolia) and studied the performances of seedlings reproduced from them. We observed that S. macroptera bloomed first, without overlap with congeneric species, followed by the other Shorea species and the two first filial (F-1) hybrids. S. curtisii and S. leprosula, the species forming hybrids are most likely to succeed in this forest, completely overlapped with their hybrids. Fruits collected from the hybrids were viable, and these hybrid seedlings showed greater survival and a higher growth rate than those from pure species under greenhouse conditions. They included various cross types such as a backcross with each parent species. These results may imply that successive hybrids and introgression spontaneously occur among Shorea species. It may be important to consider the risk of hybridization for the management of tropical forests, particularly in degraded tropical rainforests where mechanisms of ecological isolation between closely related species might be altered.


英文关键词Backcross Dipterocarp Forest degradation General flowering Heterosis
领域气候变化
收录类别SCI-E
WOS记录号WOS:000457950000006
WOS关键词INTERSPECIFIC HYBRIDIZATION ; REPRODUCTIVE PHENOLOGY ; DEMOGRAPHIC HISTORY ; BUKIT-TIMAH ; DIPTEROCARPACEAE ; GENE ; CONSERVATION ; POLYMORPHISM ; POLLINATION ; EXTINCTION
WOS类目Forestry
WOS研究方向Forestry
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/22654
专题气候变化
作者单位1.Forestry & Forest Prod Res Inst, Tsukuba, Ibaraki 3058687, Japan;
2.Arnold Arboretum Asia Program, Ctr Trop Forest Sci, 1 Nanyang Walk, Singapore 637616, Singapore;
3.Ehime Univ, Fac Agr, 3-5-7 Tarumi, Matsuyama, Ehime 7908566, Japan;
4.Nanyang Technol Univ, Asian Sch Environm, 50 Nanyang Ave, Singapore 639798, Singapore;
5.Ehime Univ, United Grad Sch Agr, 3-5-7 Tarumi, Matsuyama, Ehime 7908566, Japan;
6.Kochi Univ, Fac Agr, Nankoku, Kochi 7838502, Japan
推荐引用方式
GB/T 7714
Kenzo, Tanaka,Kamiya, Koichi,Ngo, Kang Min,et al. Overlapping flowering periods among Shorea species and high growth performance of hybrid seedlings promote hybridization and introgression in a tropical rainforest of Singapore[J]. FOREST ECOLOGY AND MANAGEMENT,2019,435:38-44.
APA Kenzo, Tanaka.,Kamiya, Koichi.,Ngo, Kang Min.,Faizu, Nik.,Lum, Shawn Kaihekulani Yamauchi.,...&Ichie, Tomoaki.(2019).Overlapping flowering periods among Shorea species and high growth performance of hybrid seedlings promote hybridization and introgression in a tropical rainforest of Singapore.FOREST ECOLOGY AND MANAGEMENT,435,38-44.
MLA Kenzo, Tanaka,et al."Overlapping flowering periods among Shorea species and high growth performance of hybrid seedlings promote hybridization and introgression in a tropical rainforest of Singapore".FOREST ECOLOGY AND MANAGEMENT 435(2019):38-44.
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