ALLELIC DIVERSITY IN THE OUTCROSSING ANNUAL PLANT S TEPHANOMERIA EXIGUA SSP. CAROTIFERA (COMPOSITAE)
نویسندگان
چکیده
منابع مشابه
Genetic Stability in a Peripheral Isolate of STEPHANOMERIA EXIGUA Ssp. CORONARIA That Fluctuates in Population Size.
Allelic frequencies did not change at five polymorphic loci in seedlings grown from seeds collected in four consecutive years in a geographically peripheral population of the annual plant Stephanomeria exigua ssp. coronaria (Compositae), even though the population number fluctuated during this period by 50:1. Genetic stability is attributed to buffering effects provided by seed storage in the g...
متن کاملOrigin of allelic diversity in antirrhinum S locus RNases.
In many plant species, self-incompatibility (SI) is genetically controlled by a single multiallelic S locus. Previous analysis of S alleles in the Solanaceae, in which S locus ribonucleases (S RNases) are responsible for stylar expression of SI, has demonstrated that allelic diversity predated speciation within this family. To understand how allelic diversity has evolved, we investigated the mo...
متن کاملHigh outcrossing in the annual colonizing species Ambrosia artemisiifolia (Asteraceae).
BACKGROUND AND AIMS Variation in mating patterns may be particularly evident in colonizing species because they commonly experience wide variation in plant density. Here, the role of density for the mating system of Ambrosia artemisiifolia (common ragweed), a wind-pollinated annual colonizing species previously reported as self-compatible, is explored. METHODS The effect of population density...
متن کاملPlant Species Diversity in Gonabad
Gonabad located at Khorasan Razavi and coordinates 580 30’ N 34o 35’ E. The highest point of the zone belongs to Peak of Siah Mountain (height of 2,863 meters above sea level) and the lowest place has height of 810 meters above sea level, which is located in North West in salt desert. The mean temperature of the warmest and coldest of year is 29.3 and 3.9 respectively. Mor...
متن کاملPlant Species Diversity in Gonabad
Gonabad located at Khorasan Razavi and coordinates 580 30’ N 34o 35’ E. The highest point of the zone belongs to Peak of Siah Mountain (height of 2,863 meters above sea level) and the lowest place has height of 810 meters above sea level, which is located in North West in salt desert. The mean temperature of the warmest and coldest of year is 29.3 and 3.9 respectively. Mor...
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: Evolution
سال: 1975
ISSN: 0014-3820,1558-5646
DOI: 10.1111/j.1558-5646.1975.tb00202.x