Results 51 to 60 of about 815 (191)

Distinctiveness in chromosomal behaviour in interspecific hybrid genotypes of cotton [PDF]

open access: yesElectronic Journal of Plant Breeding, 2010
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  

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

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

open access: diamondCYTOLOGIA, 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
B. R. Tyagi
openalex   +3 more sources

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

Cytomixis in Pollen Mother Cells of Salvia miltiorrhiza [PDF]

open access: yesCaryologia, 2009
Abstract Cytomixis has been described in many plant species, but not in Salvia miltiorrhiza Bunge, a well-known Chinese herb. The present study reports spontaneous cytomixis during microsporogenesis in S. miltiorrhiza (2n = 16) for the first time. Cytomixis frequently occurred in early prophase I but very rarely in meiosis II.
Zhen-qiao Song, Xing-feng Li1
openaire   +1 more source

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