Title of article :
Determination of genetic uniformity in transgenic cotton plants using DNA markers (RAPD and ISSR) and SDS-PAGE
Author/Authors :
Ebrahimi، Mohammad-Ali نويسنده Department of Agricultural Biotechnology, Payame Noor University, Tehran, Iran , , Tohidfar، Masoud نويسنده , , Karimi، Mahsa نويسنده Department of Chemistry, University of Sistan and Baluchestan, P. O. Box 98135-674, Zahedan, Iran , , Zawarei، Fatehmeh نويسنده Department of Plant Tissue Culture and Gene Transformation, Agricultural Biotechnology Research Institute of Iran ,
Issue Information :
دوفصلنامه با شماره پیاپی 0 سال 2015
Abstract :
يكي از موضوعات مورد بررسي در گياهان تراريخته، غيريكنواختي حاصل از تنوع سوموكلونال است. نشانگرهاي مولكولي نقش مهمي در تعيين موثر تنوع ژنتيكي دارند. تحقيق حاضر به منظور ارزيابي يكنواختي ژنتيكي پنبه تراريخته ( لاينهاي Bt و كيتيناز) با استفاده از نشانگرهاي مولكولي RAPD و ISSR و آناليز SDS-PAGE صورت گرفته است. ماتريس تشابه نشانگر RAPD با استفاده از ضريب
Nei and Li بين گياهان تراريخته ( Bt و كيتيناز) و گياهان والدي (غيرتراريخته) به ترتيب 93% و 95% بود و همچنين ماتريس تشابه ISSR براي قطعات تكثيرشده DNA دو گياه تراريخته (Bt و لاين كيتيناز) و گياهان والدي به ترتيب 94% و 96% بود. دامنه تغييرات ضريب تشابه ميان اين گياهان 94/0 تا 99/0 است. ماتريس تشابه براساس آناليز SDS-PAGE نشاندهنده چهار باند اصلي با وزن مولكولي 35-10 كيلو دالتون است كه در تحقيق انجامشده ضريب تشابه ميان گياهان تراريخته و گياهان والدي 100% است. تمامي باندهاي پروتييني اين سه رقم يكسان بوده و باندهاي چندشكلي مشاهده نشد. با توجه به نتايج حاصل شده استفاده از اين لاينها در روشهاي جديد ارزيابي تجاري و مطالعات ايمني زيستي پيشنهاد ميشود.
Abstract :
One concern about using transgenic plants is the Un-uniformity that derived from somaclonal variation molecular markers play an important role in the efficient and effective determination of genetic variation. The present work was carried out to assess the genetic uniformity of transgenic cottons (Bt and chitinase lines), using RAPD, ISSR molecular markers and SDS-PAGE analysis. Similarity matrix for RAPD marker based on Nei and Li’s coefficient revealed that p-values for pairwise comparisons between Bt and chitinase cottons and their conventional counterpart plant were 93% and 95% respectively. Also, similarity matrix for ISSR marker revealed that p-values for pairwise comparisons between Bt and chitinase lines and their conventional counterpart were 94% and 96% respectively. Pairwise similarity coefficient among two transgenic plants and their conventional counterparts ranged from 0.94 to 0.99 SDS-protein patterns exhibiting four major bands. Also, molecular weight ranged from 10 KD to 35 KD. Similarity matrix for protein patterns revealed that pairwise value between Bt and chitinase lines and their conventional counterpart was 100%. All protein bands of three cultivars were the same and no polymorphic bands were detected. Pairwise similarity coefficient among two transgenic plants and their conventional counterpart ranged from 0.94 to 0.99. These lines could be used for more in-depth evaluation and new ways of commercializing biosafety studies can be proposed.
Journal title :
Journal of Plant Molecular Breeding
Journal title :
Journal of Plant Molecular Breeding