Results 31 to 40 of about 5,168 (221)

Introgression in interspecific hybrids of lily [PDF]

open access: yes, 2002
In order to introduce new desirable characters into the cultivar assortment of lily a range of interspecific crossing barriers has to be overcome. By using various pollination and embryo rescue techniques pre- and postfertilization barriers were overcome
Lim, K.B.   +2 more
core   +2 more sources

Editing of ORF138 restores fertility of Ogura cytoplasmic male sterile broccoli via mitoTALENs. [PDF]

open access: yesPlant Biotechnol J
Summary Cytoplasmic male sterility (CMS), encoded by the mitochondrial open reading frames (ORFs), has long been used to economically produce crop hybrids. However, the utilization of CMS also hinders the exploitation of sterility and fertility variation in the absence of a restorer line, which in turn narrows the genetic background and reduces ...
Xu F   +9 more
europepmc   +2 more sources

EMS induced intercellular chromatin transmigration in Papaver somniferum L.

open access: yesCzech Journal of Genetics and Plant Breeding, 2013
The phenomenon of chromatin migration was observed during microsporogenesis in an ethyl methane sulphonate (EMS) treated population of poppy, which is an important medicinal plant.
Girjesh KUMAR, Sana NASEEM
doaj   +1 more source

Temporal sensitivity of rice seed development from spikelet fertility to viable mature seed to extreme-temperature [PDF]

open access: yes, 2015
Extreme temperature during reproductive development affects rice (Oryza sativa L.) yield and seed quality. A controlled-environment reciprocal-transfer experiment was designed where plants from two japonica cultivars were grown at 28/24 ⁰C and moved to ...
Ellis, Richard H.   +1 more
core   +1 more source

Meiose e viabilidade polínica na família Araceae Meiosis and pollen viability in Araceae family

open access: yesActa Botânica Brasílica, 2005
O objetivo deste trabalho foi analisar a microsporogênese e a viabilidade dos grãos de pólen em 17 espécies de aráceas coletadas no Rio Grande do Sul, Brasil.
Maria Goreti Senna Corrêa   +5 more
doaj   +1 more source

Molecular cytological analysis of alien introgressions in common wheat lines created by crossing of Triticum aestivum with T. dicoccoides and T. dicoccum

open access: yesВавиловский журнал генетики и селекции, 2023
Wild and domesticated emmer (ВВАА, 2n = 28) are of significant interest for expanding the genetic diversity of common wheat as sources of a high protein and microelement grain content, resistance to many biotic and abiotic factors. Particular interest in
О. A. Orlovskaya   +3 more
doaj   +1 more source

Analysis of the Maize dicer-like1 Mutant, fuzzy tassel, Implicates MicroRNAs in Anther Maturation and Dehiscence [PDF]

open access: yes, 2016
Sexual reproduction in plants requires development of haploid gametophytes from somatic tissues. Pollen is the male gametophyte and develops within the stamen; defects in the somatic tissues of the stamen and in the male gametophyte itself can result in ...
A Nag   +63 more
core   +3 more sources

Normal microspore production after cell fusion in Brachiaria jubata (Gramineae)

open access: yesGenetics and Molecular Biology, 2003
Cytogenetic studies were carried out on 22 accessions of Brachiaria jubata from the Embrapa Beef Cattle Brachiaria collection. One accession was diploid (2n = 2x = 18) and the remaining 21 were tetraploid (2n = 4x = 36). Among five tetraploid accessions,
Andréa Beatriz Mendes-Bonato   +3 more
doaj   +1 more source

Chromosome segregation in plant meiosis [PDF]

open access: yes, 2014
Faithful chromosome segregation in meiosis is essential for ploidy stability over sexual life cycles. In plants, defective chromosome segregation caused by gene mutations or other factors leads to the formation of unbalanced or unreduced gametes creating
De Storme, Nico   +4 more
core   +2 more sources

Цитомиксис, его природа, значение и цитологические последствия [PDF]

open access: yes, 2012
Цитомиксис является широко распространенным естественным процессом межклеточного взаимодействия, который свойствен вегетативным и генеративным тканям как в норме, так и при патологии.
Кравец, Е.А.
core   +1 more source

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