A study of molecular evolution and reproductive structure in primitive angiosperms

原始被子植物分子进化和生殖结构的研究

• 批准号: 14405012
• 负责人: TOBE Hiroshi
• 金额: $ 8.51万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14405012/
• 关键词: primitive angiosperms; Laurales; Monimiaceae; embryology; molecular phylogeny; chromosome; monocotyledons; Siparunaceae; ヤナギ科; 原子被子植物; ゴモルテガ科; チシマゼキショウ; ショウブ属; キク属; 分子系統

The purpose of our research is to contribute to better understanding of molecular evolution and reproductive structures of primitive angiosperms. Our output was as follows.1.We studied embryology of Laurales, in particular Eusideroxylon of Lauraceae, lower monimioids (Monimioideae and Hortonioideae) of Monimioiaceae, Hemandiaceae, as well as of basal monocots including Acoraceae and Petrosaviaceae. In addition, we also studied mode of pollen-tube growth in Fagales, in particular Betulaceae, Myricaceae and Fagaceae as well as in Eucommiacea of Garryales.2.We studied molecular phylogeny of Salicaceae of Malpighiales as well as of Petrosaviaceae of basal monocots. In the former study, we discussed a circumscription of the family in addition to internal relationships.3.We also studied molecular phylogeny of the whole monocot group and of Convallarieae of Ruscaceae sensu lato based on chloroplast DNA sequences.4.We discussed chromosome evolution in Laurales in the light of a framework of relationships. We provided the hypothesis that 2n=38 of Monimiaceae was derived by aneuploid reduction from 2n=40.5.We reported chromosome number of Strasburgeria robusta, the only species of Strasburgeriaceae endemic to New Caledonia, to be 2n=500. This is the highest number in angiosperms.

我们的研究目的是为了更好地了解原始被子植物的分子进化和生殖结构。我们的输出如下：研究了月桂科月桂属植物的胚胎学，重点研究了月桂科月桂属植物、月桂科月桂属植物的下单子叶科（月桂科和月桂科）和月桂科月桂属植物的基部单子叶。此外，我们还研究了壳斗科，特别是桦木科、杨梅科和壳斗科以及壳斗科的杜仲科的花粉管生长模式。研究了水杨科和石竹科的分子系统发育。在前一项研究中，我们除了讨论内部关系外，还讨论了家庭的界限。基于叶绿体DNA序列，研究了整个单子叶科植物组和灯叶科灯叶科植物的分子系统发育。我们从关系框架的角度讨论了月桂属植物的染色体进化。我们假设Monimiaceae的2n=38是由2n=40.5的非整倍体还原而来。我们报道了新喀里多尼亚特有的Strasburgeria robusta的染色体数为2n=500。这在被子植物中是最高的。

项目成果

Kim, J.S., J.-H.Pak, H.Tobe: "Chromosome number of Dendranthema coreana (Asteraceae)"Acta Phytotaxonomica et Geobotanica. 55(1)(in press). (2004)

Kim, J.S., J.-H.Pak, H.Tobe：“Dendranthema coreana（菊科）的染色体数目”Acta Phytotaxonnomica et Geobotanica。

Kimoto, Y., H.Tobe: "Embryology of Siparunaceae (Laurales) : characteristics and character evolution"Journal of Plant Research. 116. (2003)

Kimoto, Y., H.Tobe：“Siparunaceae（Laurales）的胚胎学：特征和性状进化”植物研究杂志。

Phylogenetic analyses and chromosome evolution in Convallarieae (Ruscaceae sensu lato), with some taxonomic treatments

• DOI: 10.1007/s10265-004-0169-z
• 发表时间: 2004-10-01
• 期刊: JOURNAL OF PLANT RESEARCH
• 影响因子: 2.8
• 作者: Yamashita, J;Tamura, MN
• 通讯作者: Tamura, MN

The evolution of fertilization modes independent of the micropyle in Fagales and `pseudoporogamy'

• DOI: 10.1007/s00606-006-0409-x
• 发表时间: 2006-05
• 期刊: Plant Systematics and Evolution
• 影响因子: 1.9
• 作者: A. Sogo;H. Tobe

Mode of pollen-tube growth in Pistils of Myrica rubra (Myricaceae): a comparison with related families.

• DOI: 10.1093/aob/mcj015
• 发表时间: 2006
• 期刊: Annals of botany
• 影响因子: 4.2
• 作者: A. Sogo;H. Tobe