Biodiversity Science ›› 2012, Vol. 20 ›› Issue (3): 391-399.doi: 10.3724/SP.J.1003.2012.09064

Special Issue: Polination Biology: Theory and Primary Practice

• Editorial • Previous Article     Next Article

Effects of vegetative growth, plant size and flowering order on sexual reproduction allocation of Tulipa sinkiangensis

Aysajan Abdusalam, Dunyan Tan*, Omarxat Tahan   

  1. Xinjiang Key Laboratory of Grassland Resources and Ecology & Ministry of Education Key Laboratory for Western Arid Region Grassland Resource and Ecology, College of Grassland and Environment Sciences, Xinjiang Agricultural University, Urümqi 830052
  • Received:2012-02-27 Revised:2012-04-19 Online:2012-05-09
  • Dunyan Tan E-mail:tandunyan@163.com

The relationship between sexual reproduction and resource allocation plays an important role in plant life history and in the evolution of breeding systems. Tulipa sinkiangensis is an early spring perennial ephemeral species endemic to the desert zone of the northern piedmont of the Tianshan Mountains, Xinjiang, China. This species produces offspring only by sexual reproduction, and produces 1–8 flowers per individual in natural populations. The relationships between sexual reproduction allocation and vegetative growth and plant size, respectively, and resource allocation among flowers and fruits at different positions within the inflorescence were studied in T. sinkiangensis. Our aims were to explore the effect of vegetative growth, plant size and flowering order on sexual reproduction allocation in this species. There was a negative correlation between the resources that plants allocate to both vegetative organs (bulb and aboveground vegetative organs) and sexual reproductive organs at flowering stage and fruit maturation stage (P<0.01), suggesting that resource allocation between vegetative growth and sexual reproduction is a trade-off. Production of multiple flowers is a stable character in this species―the total number and biomass of flowers, total fruit biomass, and total number of seeds per individual were positively correlated with plant biomass (P<0.01), indicating that sexual reproduction allocation is size-dependent. In individuals with 2–5 flowers, the biomass of flowers, pollen and ovule production, fruit-set, fruit biomass, seed number, seed-set, and 100-seed weight declined successively with flowering order within the inflorescence, indicating that resource competition for floral allocation was significant and that resource limitation for each flower or fruit is related to flowering order. Plants ensure their reproductive success by reducing resource allocation to late flowers or fruits and increasing the resource allocation to early flowers or fruits in this species.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] HAN Hou-Wei, JIANG Xin, PAN Jin-Hua, CONG Wei, SUN Juan, ZHANG Zhuang-Zhi, SONG Shao-Feng, SHENG Bao-Li, WANG Qing-Yan, and LI Xiao-Jie. Characteristics of seagrass seed and restoration of seagrass bed[J]. Chin J Plan Ecolo, 2012, 36(8): 909 -917 .
[2] MO Zhu-Cheng, FAN Hang-Qing, HE Bin-Yuan. Effects of Seawater Salinity on Hypocotyl Growth in Two Mangrove Species[J]. Chin J Plan Ecolo, 2001, 25(2): 235 -239 .
[3] Li Jiandong, Zheng Huiying. ?ber die Anwendung der Braun-Blanquet's Methode in der Steppen-Untersuchung[J]. Chin J Plan Ecolo, 1983, 7(3): 186 -203 .
[4] David J. Hearn, Margaret Evans, Ben Wolf, Michael McGinty, Jun Wen. Dispersal is associated with morphological innovation, but not increased diversification, in Cyphostemma (Vitaceae)[J]. J Syst Evol, 2018, 56(4): 340 -359 .
[5] Verónica Minaya, Gerald Corzo, Hugo Romero-Saltos, Johannes van der Kwast, Egbert Lantinga, Remigio Galárraga-Sánchez, Arthur Mynett. Altitudinal analysis of carbon stocks in the Antisana páramo, Ecuadorian Andes[J]. J Plant Ecol, 2016, 9(5): 553 -563 .
[6] LIU Jun;ZHAO Lan-Yong;FENG Zhen;ZHANG Mei-Rong;WU Yin-Feng. Optimization Selection of Genetic Transformation Regeneration System from Leaves of Dendranthema morifolium[J]. Chin Bull Bot, 2004, 21(05): 556 -558 .
[7] Lee Shu-Hsien, Tsen Mill. A Classification of the Varieties of Cowpea in China[J]. J Syst Evol, 1954, 3(1): 61 -70 .
[8] ZHOU Da-Xi, YIN Ke, XU Zhi-Hong, XUE Hong-Wei. Effect of Polar Auxin Transport on Rice Root Development[J]. J Integr Plant Biol, 2003, 45(12): 1421 -1427 .
[9] Mark P. Simmons. Relative benefits of amino-acid, codon, degeneracy, DNA, and purine-pyrimidine character coding for phylogenetic analyses of exons[J]. J Syst Evol, 2017, 55(2): 85 -109 .
[10] Qiong Wu, Fang Liu, Shaohui Li, Guoli Song, Chunying Wang, Xiangdi Zhang, Yuhong Wang, David Stelly, and Kunbo Wang. Uniqueness of the Gossypium mustelinum Genome Revealed by GISH and 45S rDNA FISH[J]. J Integr Plant Biol, 2013, 55(7): 654 -662 .