一年生龙胆属植物的繁殖分配及其花大小、数量的权衡关系研究

草业学报 ›› 2009, Vol. 18 ›› Issue (5): 58-66.

一年生龙胆属植物的繁殖分配及其花大小、数量的权衡关系研究

陈学林^1,2,梁艳²,齐威¹,苏梅¹,杜国祯^1*

1.兰州大学干旱与草地生态教育部重点实验室,甘肃兰州 730000;
2.西北师范大学生命科学学院,甘肃兰州 730070

收稿日期:2008-12-08 出版日期:2009-10-20 发布日期:2009-10-20
作者简介:陈学林 (1963-),男,甘肃永登人,教授,硕士生导师。E-mail:chenxuelin63@163.com
基金资助:
国家自然科学基金项目(90202009)和西北师范大学植物学重点学科经费项目资助。

Studies on reproductive allocation, floral size and its trade-off with floral number of annual Gentiana

CHEN Xue-lin^1,2, LIANG Yan², QI Wei¹, SU Mei¹, DU Guo-zhen¹

1.Key Laboratory of Arid and Grassland Ecology of Ministry of Education, Lanzhou University, Lanzhou
730000, China;
2.College of Life Science, Northwest Normal University, Lanzhou 730070, China

Received:2008-12-08 Online:2009-10-20 Published:2009-10-20

摘要/Abstract

摘要： 对青藏高原东缘高寒草甸一年生龙胆属植物的花期繁殖分配及其花大小与数量间权衡关系的研究发现,1)个体越大,繁殖投入越高;2)繁殖分配与个体大小间无固定的相关模式,表明不同物种对相似环境压力的适应对策不同;3)花大小和总花数均随个体增大而增加,花数量的增加要比花大小的增加更加显著;4)在采用偏相关方法控制植物个体大小后,花大小与花数目之间表现出权衡关系,与理论预测一致。

Abstract: The reproductive allocation and the trade-off between flower size and flower number of five annual plants of Gentiana in Eastern Qinghai-Tibet Plateau Alpine Meadow were studied. 1) The mass of reproductive structure increased significantly with increasing individual size; 2)There was not certain correlation between reproductive allocation and size of individuals, which suggest species-specific adaptive strategies; 3)Both floral display size and total flower production are increasing with plant size, and the flower number is increasing more remarkably than flower size; 4)The trade-off between total flower production and flower size is exist after controlling for plant size statistically. This result confirms the theory predicts.

中图分类号:

Q944

陈学林,梁艳,齐威,苏梅,杜国祯. 一年生龙胆属植物的繁殖分配及其花大小、数量的权衡关系研究[J]. 草业学报, 2009, 18(5): 58-66.

CHEN Xue-lin, LIANG Yan, QI Wei, SU Mei, DU Guo-zhen. Studies on reproductive allocation, floral size and its trade-off with floral number of annual Gentiana[J]. Acta Prataculturae Sinica, 2009, 18(5): 58-66.

参考文献

[1] Ogden J. The reproductive strategy of higher plantsⅡ. The reproductive strategy of Tussilago farfara. Journal of Ecology, 1974, 62: 319-324.
[2] Silvertown J W, Lovett D J. Introduction to Plant Population Biology. Oxford: Blackwell Scientific Publications, 1993. 141-157.
[3] Cheplick G P. Life history trade-offs in Amphibromus scabrivalvis (Poaceae): Allocation to clonal growth, storage, and cleistogamous reproduction. American Journal of Botany, 1995, 82: 621-629.
[4] 李金花, 李镇清, 刘振国. 不同刈牧强度对冷蒿生长与资源分配的影响. 应用生态学报, 2004, 15(3): 408-412.
[5] 钟章成. 植物种群的繁殖对策. 生态学杂志, 1995, 14(1): 37-42.
[6] 杜国祯, 孙国钧, 王兮之, 等. 垂穗披碱草个体大小依赖的繁殖分配与种群密度的关系.草业学报, 1999, 8(2): 26-33.
[7]仁青吉, 崔现亮, 赵彬彬. 放牧对高寒草甸植物群落结构及生产力的影响. 草业学报, 2008, 17(6): 134-140.
[8] 张大勇, 姜新华. 植物交配系统的进化、资源分配对策与遗传多样性. 植物生态学报, 2001, 25(2): 130-143.
[9] 苏智先, 钟章成. 四种大头茶种群生态学研究Ⅱ.种群生物量生殖配置格局研究. 生态学报, 1998, 18 (4): 379-385.
Lloyd D G. Selection of offspring size at independence and other size-versus-number strategies. American Naturalist, 1987, 12: 800-817.
[10] Smith C C, Fretwell S D. The optimal balance between the size and number of offspring. American Naturalist, 1974, 108: 499-506.
[11] 操国兴, 李燕, 刘欣, 等. 水蓼花大小在花序和个体上的变化及其与数量权衡关系研究. 广西植物, 2008, 28(3): 307-310.
[12] Worley A C, Barrett S C H. Evolution of floral display in Eichhornia paniculata (Pontederiaceae): Direct and correlated responses to selection on flower size and number. Evolution, 2000, 54: 1533-1545.
[13] Caruso C M. The quantitative genetics of floral trait variation in Lobelia: Potential constraints on adaptive evolution. Evolution, 2004, 58: 732-740.
[14]陈学林, 景国海, 郭辉. 青藏高原东缘高寒草甸19种马先蒿属植物种皮纹饰特征及其生物学意义. 草业学报, 2007, 16(2): 60-68.
[15]赵志刚, 杜国祯, 任青吉. 5种毛茛科植物个体大小依赖的繁殖分配和性分配. 植物生态学报, 2004, 28(1): 9-16.
[16] Fenner M. Seed Ecology. London and New York: Chapman and Hall, 1985. 1-23.
[17] 徐秀丽, 齐威, 卜海燕, 等. 青藏高原高寒草甸40种一年生植物种子的萌发特性研究. 草业学报, 2007, 16(3): 74-80.
[18] Worley A C, Barrett S C H. Evolution of floral display in Eichhornia paniculata (Pontederiaceae): Genetic correlations between flower size and number. Journal of Evolutionary Biology, 2001, 14: 469-481.
[19] Worley A C, Baker A M, Thompson J D, et al. Floral display in Narcissus: Variation in flower size and number at the species, population, and individual levels. International Journal of Plant Sciences, 2000, 161: 69-79.
[20] Sato H, Yahara T. Trade-offs between flower number and investment to a flower in selfing and outcrossing varieties of Impatiens hypophylla (Balsalminaceae). American Journal of Botany, 1999, 86: 1699-1707.
[21] 何亚平, 段元文, 费世民, 等. 青藏高原天山报春高寒湿地种群的花期资源分配. 应用与环境生物学报, 2008, 14(2): 180-186.
[22] 何亚平, 费世民, 刘建全, 等. 高山植物繁育系统研究进展初探. 四川林业科技, 2005, 26(4): 43-49.
[23] Totland O. Environment dependent pollen limitation and selection on floral traits in an alpine species. Ecology, 2001, 82(8): 2233-2244.
[24] Harder L D, Barrett S C H. Mating cost of large floral displays in hermaphrodite plants. Nature, 1995, 373: 512-515.
[26]Tomimatsu H, Ohara M. Evolution of Hierarchical floral resource allocation associated with mating system in an animal-pollinated hermaphroditic herb, Trillium camschatcense (Trilliaceae). American Journal of Botany, 2006, 93: 134-141.