Constitutive down-regulation of SiSGR gene is related to green millet in Setaria italica

Constitutive down-regulation of SiSGR gene is related to green millet in Setaria italica Millet colour is an important index to evaluate the quality of dehulled foxtail millet (Setaria italica (L.) Beauv.). Most varieties are yellow, due to the accumulation of carotenoids. However, there are some foxtail millet germplasms producing dark green millet. To elucidate the molecular mechanism of the chlorophyll retention phenotype, Daqinggu with green millet colour and Jingu 21 with yellow millet colour were selected as research material in this study. The total carotenoid level in dehulled millet of Daqinggu was about 0.024 mg/g, and 0.038 mg/g in Jingu 21. The transcript levels of carotenoid structural genes were investigated at three stages of grain development in both millet varieties. The expression levels of carotenoid biosysnthesis-related genes SiPSY3, SiPDS, SiZ-ISO, SiLCYB and SiCYP97C were significantly higher in Daqinggu than in Jingu 21, which was not consistent with the difference in the carotenoid levels between these two varieties. Interestingly, SiSGR, a homologue to the STAY-GREEN gene in Arabidopsis, tomato, and rice, was constitutively down-regulated during maturation in Daqinggu. In addition, the total chlorophyll content was consistently higher in Daqinggu than in Jingu21 during grain maturation. These evidences suggest that SiSGR is a key gene in regulating chlorophyll retention for dark green foxtail millet. Russian Journal of Plant Physiology Springer Journals

Constitutive down-regulation of SiSGR gene is related to green millet in Setaria italica

Loading next page...
Pleiades Publishing
Copyright © 2017 by Pleiades Publishing, Ltd.
Life Sciences; Plant Physiology; Plant Sciences
Publisher site
See Article on Publisher Site


You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial