Results 61 to 70 of about 195 (152)

MEIOTIC STUDIES OF SOME AVENA SPECIES AND POPULATIONS IN IRAN [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2003
Eleven populations of five Avena species were analysed for meiotic characters including chiasma frequency and distribution as well as chromosomal association and segregation. Plants of a single population of A.
doaj  

Meiotic behaviour and morpho-phenological variation in cut stock (Matthiola incana L.) flower

open access: yesFolia Horticulturae, 2017
Morpho-phenological and meiotic studies were performed in twelve cultivars of Matthiola incana. All of the cultivars were diploid (2n = 2x = 14) with basic chromosome number x = 7.
Irani Sepideh Famil, Arab Mostafa
doaj   +1 more source

Systematic study of simple-leaved group of Astragalus sect. Incani DC. in Iran

open access: yesتاکسونومی و بیوسیستماتیک, 2010
In this investigation, morphological pollen characteristics of different populations of 5 species belonging to simple-leaved group of Astragalus sect. Incani DC. in Iran were studied. Results showed that all studied taxa formed two groups.
Massoud Ranjbar   +2 more
doaj  

Cytomixis in Pollen Mother Cells of Polygonum tomentosum Schrank.

open access: yesCYTOLOGIA, 1995
Cytomixis, representing the migration of chromatic material from one cell to another, was observed in PMC's of Polygonum tomentosum Schrank. Cytomixis was observed at all stages of meiosis, but became less frequent in the later stages of meiosis. Direct nuclear fusion and cytoplasmic connections between cells were noted, so that a series of PMC's were ...
openaire   +2 more sources

Meiotic behavior during microsporogenesis, responsible for male sterility in some species of Salvia sect. Aethiopis in Iran

open access: yesCaryologia
The genus Salvia L. (Lamiaceae: tribe Mentheae) contains about 1000 species. Section Aethiopis in this genus has a distribution in the Mediterranean and central Asia and contains about 34 species in Iran.
Fatemeh Hajmoradi
doaj   +1 more source

Meiotic chromosome number and behavior of six populations of Onobrychis melanotricha Boiss. (O. sect. Heliobrychis) in Iran

open access: yesتاکسونومی و بیوسیستماتیک, 2012
The genus Onobrychis Mill. with about 130 species in 9 sections is one of the most valued legumes distributed mainly in temperate regions of north hemisphere. However, its main centers of diversity are eastern Mediterranean and southwestern Asia. O. sect.
Massoud Ranjbar   +2 more
doaj  

Cytomixis in Pollen Mother Cells of Spearmint (Mentha spicata L.).

open access: yesCYTOLOGIA, 2003
Cytomixis was recorded during microsporogenesis in a tetraploid (2n=4x=48) genotype of spearmint (Mentha spicata L.), an aromatic plant of the family Lamiaceae. The phenomenon of cytomixis was observed in leptotene to pachytene stages of the first meiotic prophase. The migration of nuclear content involved all the chromosomes or part of the chromosomes
openaire   +1 more source

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