نتایج جستجو برای: geographical populations

تعداد نتایج: 283132  

Fifteen yarrow populations from different species Achillea millefolium L., A. biebersteinii L. and A. nobilis, from different geographical areas of Iran were studied using 24 morphological traits and peroxidase profiles. Comparison of mean values of different phenotypic traits show A. millefolium and A. biebersteinii L. had higher plant height and crown diameter; however, A. nobilis had higher ...

Journal: :journal of agricultural science and technology 0
m. salami department of agronomy and plant breeding, college of agriculture, isfahan university of technology, isfahan 84156 83111, islamic republic of iran. m. rahimmalek department of agronomy and plant breeding, college of agriculture, isfahan university of technology, isfahan 84156 83111, islamic republic of iran. m. h. ehtemam department of agronomy and plant breeding, college of agriculture, isfahan university of technology, isfahan 84156 83111, islamic republic of iran.

inter simple sequence repeat (issr) markers were used to assess the genetic diversity among 23 outcross and self pollinated populations of fennel collected from different geographical regions of iran and some european countries. the experiment was carried out to determine the effect of self-pollination on morphological traits and genetic diversity in the next generation. fifteen primers produce...

Journal: :Journal of Biogeography 2021

Aim The centre–periphery hypothesis predicts that habitat suitability will decrease at the edge of a species’ range, pattern often questioned by empirical data. Here we explore if decreases southwards and shapes abundance distribution rear populations forest birds within restricted geographical setting south-western Palaearctic. We also test endemic to area fit more poorly latitudinal in due pu...

Journal: :iranian journal of ichthyology 0
hamed kolangi miandare department of fisheries, faculty of fisheries and environment, gorgan university of agricultural sciences and natural resources, gorgan, golestan, iran. omid jafari department of fisheries, faculty of fisheries and environment, gorgan university of agricultural sciences and natural resources, gorgan, golestan, iran. hajer ben alaya laboratory of marine biology, university of sciences of tunis, tunisia.

the aim of this study was to access the genetic differentiation of paraschistura sp. in kheirabad and brim rivers (zohreh river system, persian gulf basin), iran. for this purpose, 60 samples including 30 male and 30 female samples from each river were collected. a total of six microsatellite loci (bbar4, bbar7, ic228, ic230, ic434 and ic720) were used and all of them showed high polymorphism (...

Journal: :Annals of botany 2008
Mónica Medrano Carlos M Herrera

BACKGROUND AND AIMS High mountain ranges of the Mediterranean Basin harbour a large number of narrowly endemic plants. In this study an investigation is made of the levels and partitioning of genetic diversity in Narcissus longispathus, a narrow endemic of south-eastern Spanish mountains characterized by a naturally fragmented distribution due to extreme specialization on a rare habitat type. B...

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