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chromosome counts report of six astragalus l. (fabaceae) species from iran
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نویسنده
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jalilian n. ,sadeghian s. ,safari h. ,jalili a. ,asadi -corom f.
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منبع
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iranian journal of botany - 2022 - دوره : 28 - شماره : 1 - صفحه:69 -75
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چکیده
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Somatic chromosome numbers of six endemic and rare species of the genus astragalus were studied. the basic chromosome number for all studied species was x = 8. five of the studied species including a. assadabadensis, a. carduchorum, a. kirrindicus, a. nervistipulus, and a. microcephalus subsp. pycnocladus were diploid and a. trachyacanthos was tetraploid. the chromosomal parameters of the species were calculated and their idiograms were drawn. the karyotypic formula of the species was different, but in all species most of the chromosomes were metacentric and there were zero to three submetacentric chromosomes. astragalus assadabadensis had the longest chromosomes and a. trachyacanthos had the shortest chromosomes. chromosome count of three species including a. carduchorum from the sect. acidodes, a. microcephalus subsp. pycnocladus and a. trachyacanthos from the sect. rhacophorus are reported for the first time.
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کلیدواژه
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astragalus ,chromosome counts ,fabaceae ,idiograms ,karyotype ,iran
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آدرس
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agricultural research, education and extension organization (areeo), kermanshah agricultural and natural resources research and education center, forests and rangelands research department, iran, agricultural research, education and extension organization (areeo), fars agricultural, and natural resources research and education centre, natural resources division, iran, agricultural research, education and extension organization (areeo), kermanshah agricultural and natural resources research and education center, forests and rangelands research division, iran, agricultural research, education and extension organization (areeo), research institute of forests and rangelands, iran, agricultural research, education and extension organization (areeo), research institute of forests and rangelands, iran
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شمارش کروموزومی شش گونه از جنس astragalus (fabaceae) از ایران
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Authors
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جلیلیان نسترن ,صادقیان سارا ,صفری هوشمند ,جلیلی عادل ,اسدی‌کرم فرشته
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Abstract
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عدد کروموزومی 6 گونه انحصاری و نادر از جنس گون (astragalus) در این تحقیق بررسی شد. عدد پایه کروموزومی برای تمام گونه‌ها 8=x بود. گونه‌های a. assadabadensis، a. carduchorum، a. kirrindicus، a. nervistipulus وa. microcephalus subsp. pycnocladus دیپلوئید و گونه‌ی a. trachyacanthos تتراپلوئید بود. پارامتر‌های کروموزومی گونه‌ها بررسی شد و ایدیوگرام آنها رسم گردید. فرمول کاریوتیپی گونه‌ها متفاوت بود اما در تمام آنها بیشتر کروموزوم‌ها متاسنتریک بودند و تعداد صفر تا 3 کروموزوم ساب متاسنتریک در فرمول کاریوتیپی وجود داشت. گونه‌ی a. assadabadensis بلندترین طول کروموزوم‌ها و گونه‌ی a. trachyacanthos کوتاه‌ترین طول کروموزوم‌ها را داشتند. عدد کروموزومی گونه‌ی a. carduchorum از بخش acidodes، گونه‌ی a. microcephalus subsp. pycnocladus وa. trachyacanthos از بخش rhacophorus برای اولین بار گزارش می‌گردد.
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