Results 91 to 100 of about 25,416 (239)

Three closely linked X‐chromosomal genes potentially control sex determination in Cannabis sativa

open access: yesNew Phytologist, EarlyView.
Summary Sex determination mechanisms in dioecious plants remain poorly understood yet offer an excellent model system to study genetic changes underlying morphological evolution. We investigated the genetic basis of sex determination in Cannabis sativa, combining quantitative trait locus mapping in a segregating population, comparative transcriptomics ...
Matteo Toscani   +8 more
wiley   +1 more source

Ubiquitination‐Mediated Degradation of SlVPS29 by the SlHSFA7‐SlRNF185 Module Enhances Tomato Pollen Thermotolerance

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT High temperature has posed significant challenges to global agriculture, markedly leading to reduced fertility and yield losses in tomato (Solanum lycopersicum). Therefore, thermotolerance‐conferring genes and loci are needed to further improve cultivated tomatoes.
Xiaolin Geng   +9 more
wiley   +1 more source

Structural Analysis of Reproductive Development in Staminate Flowers of Laurus nobilis L.

open access: yesNotulae Scientia Biologicae, 2012
Male (staminat) flower development, being separated in 8 phases, was investigated in Laurus nobilis (Lauraceae) through the usage of histological sections and scanning electron microscopy (SEM) analysis.
Özlem AYTÜRK, Meral ÜNAL
doaj   +3 more sources

Anther development and formation of dehiscence pore in Rhododendron × pulchrum

open access: yesGuangxi Zhiwu
Flowers of Rhododendron have unique poricidal dehiscence anther, but the formation of the dehiscence pore and the mechanism of pollen releasing are not fully known.
MA Haiying   +3 more
doaj   +1 more source

Redundant Glycerol‐3‐Phosphate Acyltransferases Regulate Thermo‐Sensitive Genic Male Sterility in Rice

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Thermo‐sensitive genic male sterility (TGMS) lines play a pivotal role in two‐line hybrid rice breeding. However, the availability of elite TGMS germplasm remains limited, and the molecular mechanisms underlying fertility transition of TGMS lines are still poorly understood.
Siqi Cheng   +33 more
wiley   +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

Assessment of Pollen Production, Pollen Viability, Autofertility and Paternal Success in Faba Bean (Vicia faba L.) for Better Exploitation of Grain Yield Heterosis

open access: yesPlant Breeding, EarlyView.
ABSTRACT In animal‐pollinated plants, pollen dispersal depends on several plant and animal characteristics that can influence the paternal success of a plant. Paternal success affects the genetic contribution of a genotype to the next generation, which is relevant to plant breeding.
Lisa Brünjes, Wolfgang Link
wiley   +1 more source

Autosegregation of enzyme loci Me1 and Gpi2 in agamospermous progenies of triploid sugarbeet plants [PDF]

open access: yes, 2010
Ratios of malic-enzyme (ME1) and glucosephosphate isomerase (GPI2) phenotypic classes were studied in agamospermous progenies of triploid sugar beet plants.
Evgenii Levites, Svetlana Kirikovich
core   +1 more source

Comparing Cold Tolerance of sorghum (S. bicolor) A1 and A2 Cytoplasm‐Based Hybrids

open access: yesPlant Breeding, EarlyView.
ABSTRACT Systematic exploitation of heterosis via breeding of F1 hybrids is a major contributor to genetic gain in many major crops, including sorghum (Sorghum bicolor L. Moench). Different cytoplasmic male sterility (CMS) systems have been identified for controlled F1 hybrid seed production in sorghum, with the so‐called A1 and A2 CMS systems being ...
Natalja Kravcov   +4 more
wiley   +1 more source

Structure and development of male gametophyte in Carya illinoensis (Wangenh.) K. Koch

open access: yesCaryologia, 2019
In order to understand the differentiation of staminate flowers of pecans (Carya illinoensis (Wangenh.) K. Koch), we carried out an integrated study of staminate flower development in a protogynous cultivar, Mahan, by assessing changes in external ...
Minghui Han   +3 more
doaj   +1 more source

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