The effect of twig architecture and seed number on seed size variation in subtropical woody species

	The effect of twig architecture and seed number on seed size variation in subtropical woody species
	Chen, H ; Niklas, KJ ; Yang, DM ; Sun, SC
刊名	NEW PHYTOLOGIST
	2009
卷号	183 期号:4 页码:1212_1221
关键词	architecture fruit size leaf habit seed size vs number tradeoff twig size
ISSN号	0028-646X
通讯作者	Sun, SC, Chinese Acad Sci, Chengdu Inst Biol, ECORES Lab, Chengdu 610041, Peoples R China.
中文摘要	This study aims to determine the effect of twig (current year shoot) size on seed size variation and to test whether a seed size vs number tradeoff occurs for the twigs of subtropical broad-leaved species. Fruit-bearing twigs were sampled for 55 woody species (including 33 evergreen and 22 deciduous dicot species) from a southwest Chinese forest. Twig size, fruit size and number, and seed size and number were measured for each species. The relationships among these functional traits were determined both across species and across correlated phyletic divergences. Total fruit mass and total seed mass were positively correlated with twig size. Seed size was positively associated with fruit size, which was, in turn, positively correlated with twig diameter, but negatively correlated with the ratio of twig length to diameter. The effect of twig size on seed size variation was not significant, possibly as a result of the large variation in seed number per fruit. Cross-species and across-phyletic divergence analyses revealed that seed size was negatively and isometrically correlated with seed number per twig mass in both the evergreen and deciduous species groupings, demonstrating the existence of tradeoff between seed size and number. A seed size vs number tradeoff is detectable in the twigs of woody species. Comparatively little of the variance in seed size was attributable to twig size variation.
学科主题	Plant Sciences
收录类别	SCI
资助信息	Chinese Academy of Sciences [05C2051205]; National Science Foundation of China [30670333, 200804001]; University to Shucun Sun
语种	英语
公开日期	2011-07-08
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/22330]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Chen, H,Niklas, KJ,Yang, DM,et al. The effect of twig architecture and seed number on seed size variation in subtropical woody species[J]. NEW PHYTOLOGIST,2009,183(4):1212_1221.
APA	Chen, H,Niklas, KJ,Yang, DM,&Sun, SC.(2009).The effect of twig architecture and seed number on seed size variation in subtropical woody species.NEW PHYTOLOGIST,183(4),1212_1221.
MLA	Chen, H,et al."The effect of twig architecture and seed number on seed size variation in subtropical woody species".NEW PHYTOLOGIST 183.4(2009):1212_1221.