شمارش کروموزومی نوزده گونه گیاهی از ایران

نوع مقاله : مقاله کوتاه

نویسنده

بخش تحقیقات جنگل‌ها و مراتع، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان بوشهر، سازمان تحقیقات، آموزش و ترویج کشاورزی

چکیده

در این پژوهش، بذور ۱9 گونه گیاهی بومی متعلق به ۶ تیره Apocynaceae ، Capparaceae، Cleomaceae، Fabaceae، Resedaceae و Zygophyllaceae، از استان بوشهر جمع‏آوری شد. شمارش کروموزومی 19 گونه شاملCaralluma edulis (Edgew.) Benth. ex Hook.f.  (2n=22)، Pergularia tomentosa L. (2n=22)،Capparis cartilaginea Decne.  (2n=20)، (2n=20) C. parviflora Boiss.،C. spinosa L. (2n=20)، Cleome glaucescens DC. (2n=20)،Boiss.  C. oxypetala (2n=20)، Astragalus annularis Forssk. (2n=16)،(2n=16) A. boeticus L.،A. hamosus L.  (2n=16)، A. meridionalis Bunge. (2n=16)،(2n=24) Ochradenus aucheri Boiss. ،Oligomeris linifolia (Vahl) Macbr.  (2n=16)، Reseda alba subsp. alba (2n=24)،R. alba subsp. decursiva (Forssk.) Maire (2n=24)، R. arabica Boiss. (2n=12)، R. aucheri subsp. bracteate Boiss. (2n=24)، Zygophyllum qatarense (Hadidi) Beier & Thulin ،(2n=20) وTribulus terrestris var. inermis Boiss.(2n=24)، برای اولین بار در فلور ایران گزارش می ‏گردند. نکته قابل توجه این مطالعه، مشاهده حالت دیپلوئید در سه گونه Capparis spinosa،Reseda alba subsp. decursiva  و  R. aucheri subsp. bracteata است که در مطالعات پیشین به ‏صورت تتراپلوئید به ‏ترتیب(2n=4x=40)، (2n=4x=48) و (2n=4x=48) گزارش شده است.  

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