Results 71 to 80 of about 815 (191)

Cytological Analyses in ‘Niagara Branca’ Grape and in Its Somatic Mutant ‘Niagara Rosada’

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2014
An investigation in the microsporogenesis of two cultivars of grapes (Vitis L.), were carried out on ‘Niagara Branca’ and on its somatic mutant ‘Niagara Rosada’, aiming at ascertaining the normality of the microsporogenesis.
Neiva Izabel PIEROZZI   +1 more
doaj   +1 more source

Nonreduction via meiotic restitution and pollen heterogeneity may explain residual male fertility in triploid marine halophyte Limonium algarvense (Plumbaginaceae)

open access: yesCaryologia, 2019
The cosmopolitan halophylic genus Limonium (Plumbaginaceae) presents high cytogenetic interest because of the natural occurrence of diploid and polyploid variants.
Sofia I. R. Conceição   +2 more
doaj   +1 more source

Cytomixis in plants: causes, mechanisms and consequences

open access: yesRevista Brasileira de Biociências, 2011
A migração de organelas, produtos gênicos e material genético entre meiócitos por meio de conexões citoplasmáticas ou canais citomíticos é definida como citomixia. Esse fenômeno tem sido relatado em Leguminosae, Brassicaceae, Poaceae, Apocynaceae, Liliaceae, Rutaceae, entre outras famílias, sendo mais comumente observado entre células mãe dos grãos de ...
Pierre, Patrícia Maria Oliveira   +1 more
openaire   +1 more source

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

Meiotic behavior of economically important plant species: the relationship between fertility and male sterility

open access: yesGenetics and Molecular Biology, 2000
Meiosis is an event of high evolutionary stability which culminates in a reduction of chromosome number. The normal and harmonious course of meiosis ensures gamete viability. The cytologic events of gametogenesis are controlled by a large number of genes
Maria Suely Pagliarini
doaj   +1 more source

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  

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  

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