Cross-incompatibility and self-incompatibility: unrelated phenomena in wild and cultivated potatoes?
نویسندگان
چکیده
منابع مشابه
A gene block causing cross-incompatibility hidden in wild and cultivated rice.
Unidirectional cross-incompatibility was detected in advanced generations of backcrossing between wild (Oryza rufipogon) and cultivated (O. sativa) rice strains. The near-isogenic line (NIL) of T65wx (Japonica type) carrying an alien segment of chromosome 6 from a wild strain gave a reduced seed setting only when crossed with T65wx as the male. Cytological observations showed that abortion of h...
متن کاملSelf-incompatibility
There are several different types of self-incompatibility in different flowering plant species, and there has recently been progress in understanding their molecular genetics by using combined molecular and evolutionary approaches. Questions include the mechanism of self-incompatibility (both the nature of the proteins encoded by the genes and whether incompatibility systems all have separate g...
متن کاملSelf-incompatibility in Papaver
Self-fertilization, which results in reduced fitness of offspring, is a common problem in hermaphrodite angiosperms. To prevent this, many plants utilize self-incompatibility (SI), which is determined by the multi-allelic S locus, that allows discrimination between self (incompatible) and non-self (compatible) pollen by the pistil. In poppy (Papaver rhoeas), the pistil S-determinant (PrsS) is a...
متن کاملMother and Child Incompatibility
اهداف اولیه این بررسی آزمایش، شناسائی ارتباط روانی - اجتماعی مادر، با انتظارات غیرواقعی از کودک، توان بالقوه تنبیه بی مورد او و بررسی ارتباط این عوامل با رفتار کودک بود. جهت تحقیق، از روش مقطعی در دو گروه استفاده شد. یک گروه شامل بیست مادر با درآمد کم بود که کودکان پیش دبستانی آنها به دلیل تنبیهات بدنی و غفلت والدین بالاخص مادر، به یک موسسه مراقبتهای خانوادگی ارجاع داده شده بودند.
متن کاملSelf-incompatibility in Brassicaceae crops: lessons for interspecific incompatibility
Most wild plants and some crops of the Brassicaceae express self-incompatibility, which is a mechanism that allows stigmas to recognize and discriminate against "self" pollen, thus preventing self-fertilization and inbreeding. Self-incompatibility in this family is controlled by a single S locus containing two multiallelic genes that encode the stigma-expressed S-locus receptor kinase and its p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Botany
سال: 2018
ISSN: 1916-2790,1916-2804
DOI: 10.1139/cjb-2017-0070