Results 31 to 40 of about 192 (151)
Characteristics of cytomixis in the pollen mother cells of green manure crop Sesbania cannabina [PDF]
Cytomixis has been reported in many plant species, but there is no published report in Sesbania cannabina spp. The cytological stability of any plant is an important consideration in view of its extensive use in genetics and plant breeding programmes ...
Girjesh Kumar, Nitisha Srivastava
doaj
Chromosome number and meiotic behaviour of two populations of Onobrychis chorassanica Bunge (O. sect. Hymenobrychis) in Iran [PDF]
The genus Onobrychis belongs to family Fabaceae and has about 130 species throughout the world. Onobrychis sect. Hymenobrychis with nearly 14 species in Iran is one of the important sections of the genus.
Masoud Ranjbar +2 more
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SUMMARYThe objects of the study were microsporocytes of Lilium candidum L. in all stages of meiosis. It was possible to induce cytomixis patterns experimentally only by some mechanical stimuli applied in a particular way, such as squashing, piercing with a blunt needle and cutting with a blunt blade.
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The objective of this work was to compare the meiotic behavior and pollen grain viability of three species of Crotalaria. Slides for meiotic analysis were prepared by the air-drying technique.
Kátia Ferreira +3 more
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The formation of cytomictic channels (CCs) during the tobacco microsporogenesis has been analyzed by microscopy and cytochemical methods. Starting from the pachytene stage, CCs were formed between microsporocytes with involvement of specific organelles ...
S. Mursalimov, Y. Sidorchuk, E. Deineko
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Distinctiveness in chromosomal behaviour in interspecific hybrid genotypes of cotton [PDF]
Cytological studies in interspecific hybrid derivatives of cotton viz., IS-244/4/1 and IS-181/7/1 obtained in BC1F8generation of trispecies cross of [ (G. hirsutum x G. barbadanse )x G.
A.W. More and U.G. Kulkarni
doaj
Disparity or continuity in the chromosome count within taxa of various categories has been verified to be an imperative character for taxonomic classification.
Younas Rasheed Tantray +4 more
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Cytomixis in Vigna glaberscens TTK1 (wild).
Cytogenetical studies in Vigna glaberscens TTK1 revealed twenty two and fourty four as haploid and diploid chromosome numbers respectively. Spontaneous occurrence of cytomixis is due to the transfer of chromatin material from one pollen mother cell to other through connecting channel has been noted. Pollen mother cells with reduced chromosome number (n=
Sen, Oli, Bhattacharya, Sima
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Cytomixis and a trisomic in Nigella sativa L.
Occurrence of cytomixis was detected in the M2 generation of a lax branching type mutant of Nigella sativa L. obtained through EMS treatment. Presence of cytomixis was restricted only in the prophase I cells of meiotic division. Transfer of nuclear materials from one PMC to the adjacent PMCs took place through cytoplasmic links and it occurred at ...
Datta, Animesh K., Biswas, Amal K.
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B-Chromosome and Cytomixis in Cirsium (Asteraceae)
Cirsium species grow in various regions of Iran but their cytological study is very limited. Therefore, meiotic analysis of 21 populations in 17 Cirsium species was performed, showing the occurrence of synezetic knots and post pachyten diffuse stages possibly due to adaptation to different environmental conditions.
Nouroozi, Maryam +3 more
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