Sexual reproduction and short-term fitness advantage in the rotifer Brachionus calyciflorus: implications for the coexistence of sympatric clones

Dong Sun; Rui Ma; Wei Liu; Cuijuan Niu

doi:10.1007/s00343-013-2271-3

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Sexual reproduction and short-term fitness advantage in the rotifer Brachionus calyciflorus: implications for the coexistence of sympatric clones

OriginalPaper | Updated：2023-05-16

- Sexual reproduction and short-term fitness advantage in the rotifer Brachionus calyciflorus: implications for the coexistence of sympatric clones
- Sexual reproduction and short-term fitness advantage in the rotifer Brachionus calyciflorus: implications for the coexistence of sympatric clones
- 海洋湖沼学报（英文） 2013年31卷第5期页码：987-993
- Affiliations：
  
  1. Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering College of Life Sciences Beijing Normal University
  2. Laboratory of Marine Ecosystem and Biogeochemistry Second Institute of Oceanography SOA
  3. Beijing No. 5 High School
  4. Research Center for Marine Ecology First Institute of Oceanography SOA
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (Nos. 30970349, 41206110)
- DOI：10.1007/s00343-013-2271-3
  中图分类号：
- 网络首发：2013-09-07，
  
  纸质出版：2013
- Accepted：
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Sexual reproduction and short-term fitness advantage in the rotifer Brachionus calyciflorus: implications for the coexistence of sympatric clones[J]. 海洋湖沼学报（英文）, 2013,31(5):987-993.

Sun, D., Ma, R., Liu, W. et al. Sexual reproduction and short-term fitness advantage in the rotifer Brachionus calyciflorus: implications for the coexistence of sympatric clones., Chin. J. Ocean. Limnol. 31, 987–993 (2013). https://doi.org/10.1007/s00343-013-2271-3
Sexual reproduction and short-term fitness advantage in the rotifer Brachionus calyciflorus: implications for the coexistence of sympatric clones[J]. 海洋湖沼学报（英文）, 2013,31(5):987-993. DOI： 10.1007/s00343-013-2271-3.

Sun, D., Ma, R., Liu, W. et al. Sexual reproduction and short-term fitness advantage in the rotifer Brachionus calyciflorus: implications for the coexistence of sympatric clones., Chin. J. Ocean. Limnol. 31, 987–993 (2013). https://doi.org/10.1007/s00343-013-2271-3 DOI：

摘要

Abstract

Large numbers of rotifer eggs from sediment resting egg banks may hatch simultaneously under appropriate conditions; therefore

natural populations are likely to be multiclonal in a growing season. A recent field investigation showed that subordinate and ephemeral clones were able to establish populations in an environment with several strongly dominant clone populations. However

it was not clear how the subordinate populations maintained their growth under these conditions where the crowding signal would induce high levels of sexual reproduction in the dominant clone populations. In the present study

we conducted a continuous passage to 60 generations for new populations at three different temperatures (15°C

25°C

and 35°C). These populations emerged from resting eggs produced by a clone population. At the first

30th

and 60th generations

the populations were sampled and fitness was assayed using the life-table method. We found a significant short-term fitness advantage for populations newly emerged from resting eggs produced by a clone population of the rotifer Brachionus calyciflorus

followed by a significant decrease in relative fitness with long-term continuous passage. Our results suggested that the early short-term fitness advantage was important for later-hatched and subordinate clone populations in an environment with multiple sympatric clones. The early short-term fitness might also promote the coexistence of sympatric clones because it could help to offset the cost of early sexual reproduction.

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references

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