Results 41 to 50 of about 666 (162)

The role of spherosome-like vesicles in formation of cytomictic channels between tobacco microsporocytes

open access: yesBiologia Plantarum, 2013
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
doaj   +1 more source

Chromosome numbers and meiotic behavior in some species of Asteraceae from high altitudinal regions of Kashmir Himalayas

open access: yesJournal of Asia-Pacific Biodiversity, 2021
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
doaj   +1 more source

Structural Heterozygosity and Cytomixis in Deutzia staminea R. Br. ex Wall. from Parvati Valley, Himachal Pradesh, India

open access: yesCYTOLOGIA, 2018
Male meiotic studies have been performed on plants basis in Deutzia staminea collected from three localities of Parvati valley, Kullu district, Himachal Pradesh, India.
Himshikha Gupta   +3 more
semanticscholar   +1 more source

The Nature of Cytomixis

open access: yesCaryologia, 1973
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.
openaire   +1 more source

B-Chromosome and Cytomixis in Cirsium (Asteraceae)

open access: yesCYTOLOGIA, 2011
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.
Maryam Nouroozi   +3 more
openaire   +2 more sources

Meiotic behavior and pollen viability in Jatropha curcas L.

open access: yesSemina: Ciências Agrárias, 2015
The Jatropha curcas, known as physic nut, belonging to the Euphorbiaceae family, figure today as one of the greatest potential of oilseeds for biodiesel production in Brazil. The present study aimed to evaluate meiosis and pollen viability in J.
Isabela Pereira Diegues   +4 more
doaj   +1 more source

Effect of heavy metals on meiosis cell division in Stachys inflata Benth. [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2019
Stachys inflata Benth. belonging to Lamiaceae, grows in the vicinity of zinc and lead mine around Zehabad village, Qazvin Province, Iran. The aim of this study is to determine how S. inflata is affected by a long-term exposure to zinc and lead pollutants.
F. Hajmoradi, A. Taleb Beydokhti
doaj   +1 more source

NOTE - Meiotic irregularities in Capsicum L. species [PDF]

open access: yesCrop Breeding and Applied Biotechnology, 2012
Cytogenetic and pollen viability (PV) studies were performed in pepper accessions, Capsicum chinense and Capsicum baccatum. Irregularities such as laggard and univalent chromosomes, bridges, problems in the spindle fibers and cytomixis were observed ...
Margarete Magalhães Souza   +3 more
doaj  

Floral architecture, breeding system, seed biology and chromosomal studies in endangered Himalayan Angelica glauca Edgew. (Apiaceae)

open access: yesCaryologia, 2019
Endangered Angelica glauca an important medicinal plant of temperate Himalaya is valued for its roots which are used to treat several diseases besides food flavouring.
Kamini Gautam, Ravinder Raina
doaj   +1 more source

Cytomixis and a trisomic in Nigella sativa L.

open access: yesCYTOLOGIA, 1984
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 ...
Animesh K. Datta, Amal K. Biswas
openaire   +2 more sources

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