نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد بیوتکنولوژی در کشاورزی، گروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی دانشگاه گنبدکاووس
2 دانشیار گروه تولیدات گیاهی دانشگاه گنبدکاووس، ایران
3 استادیار گروه تولیدات گیاهی، عضو هیئت علمی دانشکده کشاورزی و منابع طبیعی دانشگاه گنبدکاووس
4 استادیار گروه تولیدات گیاهی، عضو هیئت علمی دانشکده کشاورزی و منابع طبیعی دانشگاه گنبدکاووس.
5 گروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی دانشگاه گنبد کاووس، گنبد کاووس، ایران
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Objective
This experiment was conducted for developing of linkage map using SSR and ISSR markers in Iranian rice population, mapping of QTLs involved in salinity tolerance, and also evaluation of salinity tolerance in studied genotype.
Materials and Methods
In order to determine the salinity tolerance QTLs in a germination stage on an Iranian rice population (caused Ahlami Tarom × Neda cross), a factorial experiment was performed based on a randomized complete block design with three replications under three salinity levels of NaCl (0, 12, 22 dS.m-1).
Results
The difference between populations in different levels of salinity was significant for all germination traits. Under normal conditions, 4, 1, 2 and 1 QTLs were detected for radicle weight, plumule weight, germination percentage and germination rate, respectively. In 12 dS.m-1, 1, 1, 1, 2, 1 and 1 QTL for seedling weights, plumule weight, radicle length, coleoptile, germination percentage and germination rate. In 22 dS.m-1, 2, 1, 1 and 1 QTL were located for radicle weight, plant length, germination percentage and germination rate.
Discussion
The major effects of QTLs in this study played an important role in salinity tolerance and can be studied in marker assisted selection programs in rice under saline conditions.
کلیدواژه‌ها [English]
)
