, 214:24 | Cite as

Plant development of new ecological model related to yield using QTL analysis

  • XiaoHan Wang
  • Il Kyung Chung
  • Hak Yoon Kim
  • Kyung-Min Kim


We used Cheongcheong/Nagdong doubled haploid (CNDH) genetic map to develop early flowering furthermore heavy panicle variety. Conspicuous three lines were selected among 120 CNDH population by QTL analysis 2 years of data on CNDH heading date and panicle weight. The casein kinase I (PCKP) gene, which is related to early heading gene, was found by physical gene mapping and map-based cloning. PCKP is involved in the control of rice flowering time by modulating the day-length response. PCKP acts as an inhibitor in the rice flowering pathway by enhancing the photoperiod response. In northern part, rice is harvested on October, however rice yield is reduce due to the frequent typhoon during September. However, if the rice varieties developed in this study are used, they can be harvested with high yield before environmental disaster, which will be efficient for safely cope with food.


QTL Heading date Early flowering cultivar Heavy panicle type Rice 



This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2017R1D1A3B04028676).

Compliance with ethical standards

Conflict of interest

The authors declare no conflict of interest.

Supplementary material

10681_2018_2109_MOESM1_ESM.docx (392 kb)
Supplementary material 1 (DOCX 391 kb)


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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • XiaoHan Wang
    • 1
  • Il Kyung Chung
    • 2
  • Hak Yoon Kim
    • 3
  • Kyung-Min Kim
    • 1
  1. 1.School of Applied Biosciences, College of Agriculture and Life ScienceKyungpook National UniversityDaeguRepublic of Korea
  2. 2.Department of BiotechnologyCatholic University of DaeguGyeongbukRepublic of Korea
  3. 3.Department of Global EnvironmentKeimyung UniversityDaeguRepublic of Korea

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