An-Najah University Journal for Research - A (Natural Sciences)

Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry

Article info

2015-07-14
2016-05-08
35 - 54

Keywords

  • flow cytometry
  • DNA content
  • genome size
  • Copaifera officinalis
  • diesel tree
  • 1C-value
  • Conyza canadensis.
  • horseweed
  • switchgrass

Abstract

Nuclear DNA content and genome size are key factors in biology and biodiversity, and have important implications in modern molecular genetic studies. Diesel tree (Copaifera officinalis L.) and switchgrass (Panicum virgatum L. cv. Alamo) are attractive sources for biofuels production, including biodiesel and cellulosic ethanol. On the other hand, horseweed (Conyza canadensis L.) is one of the most agriculturally problematic herbicide-resistant weeds worldwide. The nuclear DNA contents (expressed as 1C values) of these economically significant plants were estimated by a fast and valid method of laser flow cytometry. Intact nuclei were isolated from young leaves or roots, stained with propidium iodide, a fluorescent DNA-staining dye, and then analyzed by a flow cytometer simultaneously with nuclei from reference standard plants of known C-values. The 1C-value of the nuclear DNA content of C. officinalis was ca. (1,161 Mbp = 1.19 pg DNA). It is approximately similar to that of oilseed rape and soybean, and is more than eight times the genome size of Arabidopsis thaliana (L.) Heynh. ecotype Columbia. The 1C DNA content of switchgrass (P. virgatum) cv. ‘Alamo’ tetraploid ecotype was estimated at 1,445 Mbp (= 1.48 pg DNA), which is more than ten times the genome size of A. thaliana. Finally, the DNA content of the diploid horseweed (C. canadensis) was ca. (378 Mbp = 0.39 pg DNA), which is approximately 2.8 times the genome size of A. thaliana, and smaller than the reference genomes of rice and poplar. These data will be useful for molecular and genomic approaches, such as genome sequencing projects and construction of genomic libraries.

Recommended Citation

Al-Ahmad, H., Kania, S. A., Trent, D. J., & Jr, C. N. S. (2017). Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry. An-Najah University Journal for Research - A (Natural Sciences), 31(1), 35–54. https://doi.org/10.35552/anujr.a.31.1.1358
[1]H. Al-Ahmad, S. A. Kania, D. J. Trent, and C. N. S. Jr, “Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry,” An-Najah University Journal for Research - A (Natural Sciences), vol. 31, no. 1, pp. 35–54, Feb. 2017, doi: 10.35552/anujr.a.31.1.1358.
Al-Ahmad, Hani, et al. “Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry.” An-Najah University Journal for Research - A (Natural Sciences), vol. 31, no. 1, Feb. 2017, pp. 35–54. Crossref, https://doi.org/10.35552/anujr.a.31.1.1358.
1.Al-Ahmad H, Kania SA, Trent DJ, Jr CNS. Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry. An-Najah University Journal for Research - A (Natural Sciences) [Internet]. 2017 Feb;31(1):35–54. Available from: http://dx.doi.org/10.35552/anujr.a.31.1.1358
Al-Ahmad, Hani, Stephen A. Kania, Dianne J. Trent, and C. Neal Stewart Jr. “Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry.” An-Najah University Journal for Research - A (Natural Sciences) 31, no. 1 (February 2017): 35–54. https://doi.org/10.35552/anujr.a.31.1.1358.

تحديد محتوى الحمض النووي لثلاثة أنواع من النباتات ذات الأهمية الزراعية والأقتصادية بواسطة مقياس التدفق الخلوي الليزري

معلومات المقال

2015-07-14
2016-05-08
35 - 54

الكلمات الإفتتاحية

  • flow cytometry
  • DNA content
  • genome size
  • Copaifera officinalis
  • diesel tree
  • 1C-value
  • Conyza canadensis.
  • horseweed
  • switchgrass

الملخص

يعتبر محتوى DNA النووي وحجم الجينوم عوامل رئيسية في علم الأحياء والتنوع البيولوجي، ولها آثارهامة في الدراسات الجينية الجزيئية الحديثة .شجرة الديزل (Copaifera officinalis L.) ونبات switchgrass (Panicum virgatum L.) من سُلالة ألامو من المصادر الجذابة لإنتاج الوقود الحيوي، بما في ذلك وقود الديزل الحيوي والايثانول المنتج من السليولوز. ومن ناحية أخرى، يعتبر نباتhorseweed (Conyza canadensis L.) واحدا من أكثرالأعشاب إشكالية في العالم لمقاومته للمبيدات الزراعية. في هذا البحث قدرت محتويات DNA النووية للنباتات المذكورة أعلاه بطريقة سريعة عن طريق مقياس التدفق الخلوي الليزري، بحيث تم عزل الأنوية الخلوية من الأوراق أو الجذور وصبغها بمادة propidium iodide المشع، ومن ثم تم تحليلها من قبل قياس التدفق الخلوي في وقت واحد مع أنوية لنباتات معيارية وذات محتوى DNA معروف أصلا. قدرت قيمة محتوى DNAالنووي لشجرة الديزل بحوالي (1,161 Mbp = 1.19 pg DNA) أي أكثر بثمانية أضعاف من حجم جينوم نبات الأرابيدوبسيسArabidopsis thaliana المعياري. وقدر المحتوى النووي لنبات (P. virgatum) من سلالة "ألامو "بحوالي (1,445 Mbp = 1.48 pg DNA)، والتي هي أكثر بعشرة أضعاف من حجم الجينوم لنبات .A. thaliana وأخيرا، قدر محتوى الحمض النووي للنبات العشبي horseweed بحوالي (378 Mbp = 0.39 pg DNA)، وهو ما يقارب 2.8 أضعاف حجم الجينوم لنبات .A. thaliana إن لهذه البيانات فوائد واستخدامات مستقبلية في الأبحاث الجزيئية والجينومية، مثل مشاريع دراسة تسلسل الجينوم وبناء مكتبات الجينوم.

Recommended Citation

Al-Ahmad, H., Kania, S. A., Trent, D. J., & Jr, C. N. S. (2017). Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry. An-Najah University Journal for Research - A (Natural Sciences), 31(1), 35–54. https://doi.org/10.35552/anujr.a.31.1.1358
[1]H. Al-Ahmad, S. A. Kania, D. J. Trent, and C. N. S. Jr, “Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry,” An-Najah University Journal for Research - A (Natural Sciences), vol. 31, no. 1, pp. 35–54, Feb. 2017, doi: 10.35552/anujr.a.31.1.1358.
Al-Ahmad, Hani, et al. “Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry.” An-Najah University Journal for Research - A (Natural Sciences), vol. 31, no. 1, Feb. 2017, pp. 35–54. Crossref, https://doi.org/10.35552/anujr.a.31.1.1358.
1.Al-Ahmad H, Kania SA, Trent DJ, Jr CNS. Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry. An-Najah University Journal for Research - A (Natural Sciences) [Internet]. 2017 Feb;31(1):35–54. Available from: http://dx.doi.org/10.35552/anujr.a.31.1.1358
Al-Ahmad, Hani, Stephen A. Kania, Dianne J. Trent, and C. Neal Stewart Jr. “Estimation of Nuclear DNA Contents of Three Economically Important Plant Species by Laser Flow Cytometry.” An-Najah University Journal for Research - A (Natural Sciences) 31, no. 1 (February 2017): 35–54. https://doi.org/10.35552/anujr.a.31.1.1358.

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