Results 51 to 60 of about 545 (183)
Journal 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
Distinctiveness in chromosomal behaviour in interspecific hybrid genotypes of cotton [PDF]
Electronic 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
Male meiosis peculiarities of four oat (Avena sativa L.) varieties cultivated in Central Yakutia [PDF]
, 2022 Проведена оценка особенностей протекания мужского мейоза – цитологического процесса, лежащего в основе формирования гамет и в значительной степени определяющего дальнейшее формирование полноценного семени, в сложных агроклиматических условиях Центральной
Петрова, Лидия Владимировна +1 more
core +2 more sources
Cytomixis and a trisomic in Nigella sativa L.
CYTOLOGIA, 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
B-Chromosome and Cytomixis in Cirsium (Asteraceae)
CYTOLOGIA, 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
Cytology of some Iranian Stipa (Poaceae) species and populations [PDF]
, 2006 Meiotic studies were performed on 16 populations of 13 Stipa species concerning polyploidy level, chiasma frequency and distribution, chromosome association and segregation.
M. Khosravi-Reineh +2 more
core +1 more source
Cytomixis in Vigna glaberscens TTK1 (wild).
CYTOLOGIA, 1988 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=
Oli Sen, Sima Bhattacharya
openaire +2 more sources
Meiotic behavior and pollen viability in Jatropha curcas L.
Semina: 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]
Caspian 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
Histological and cytological analysis of microsporogenesis and microgametogenesis of the invasive species Galinsoga quadriradiata Ruiz & Pav. (Asteraceae) [PDF]
, 2015 Galinsoga quadriradiataRuiz & Pav. is an annual weedy plant that can be found all over the world. It belongsto the Asteraceae family and is recognised as one of the invasive foreign plants in Poland, which are native toCentral and South America.
Kolczyk, Jolanta +2 more
core +1 more source