کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
143176 163185 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Merging theory and mechanism in studies of gynodioecy
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Merging theory and mechanism in studies of gynodioecy
چکیده انگلیسی

In gynodioecious species, females and hermaphrodites coexist and the genetics of sex determination is usually nuclear cytoplasmic. Maintaining nuclear-cytoplasmic gynodioecy requires polymorphism for the feminizing genes (contained in the mitochondria) and the genes that restore male fertility (contained in the nucleus). This complex polymorphism depends, in part, on there being negative pleiotropic effects (i.e. costs) of the nuclear restorer alleles. Here, we combine information from theoretical studies and studies on the molecular action of restorer alleles in crops to interpret the probable costs of such alleles, and suggest how various aspects of the theoretical models could be tested. In doing so, we highlight how crops can be used to address evolutionary questions about the maintenance of nuclear-cytoplasmic gynodioecy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 22, Issue 1, January 2007, Pages 17–24
نویسندگان
, , ,