Pollen fertility
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Maize kernel filling, which is closely related to the process of double fertilization and is sensitive to a variety of environmental conditions, is an important component of maize yield determination. Silk is an important tissue of maize ears that can discriminate pollen and conduct pollination.
11p vihagrid 30-01-2023 8 3 Download
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As in animals, cell–cell communication plays a pivotal role in male–female recognition during plant sexual reproduction. Prelaid peptides secreted from the female reproductive tissues guide pollen tubes towards ovules for fertilization. However, the elaborate mechanisms for this dialogue have remained elusive, particularly from the male perspective.
29p viaristotle 29-01-2022 10 0 Download
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COI (CORONATINE INSENSITIVE), an F-box component of the Skp1-Cullin-F-box protein (SCFCOI1) ubiquitin E3 ligase, plays important roles in the regulation of plant growth and development. Recent studies have shown that COIs are involved in pollen fertility. In this study, we identified and characterized COI genes in the wheat genome and analyzed expression patterns under abiotic stress.
17p vitzuyu2711 29-09-2021 15 1 Download
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Cytoplasmic male sterility (CMS) and its restoration of fertility (Rf) system is an important mechanism to produce F1 hybrid seeds. Understanding the interaction that controls restoration at a molecular level will benefit plant breeders. The CMS is caused by the interaction between mitochondrial and nuclear genes, with the CMS phenotype failing to produce functional anthers, pollen, or male gametes.
17p viansan2711 30-07-2021 14 1 Download
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Fertilization in flowering plants depends on the early contact and acceptance of pollen grains by the receptive papilla cells of the stigma. Deciphering the specific transcriptomic response of both pollen and stigmatic cells during their interaction constitutes an important challenge to better our understanding of this cell recognition event.
18p vilichoo2711 23-06-2021 14 1 Download
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Cytoplasmic male sterile (CMS) with cytoplasm from Gossypium Trilobum (D8) fails to produce functional pollen. It is useful for commercial hybrid cotton seed production. The restore line of CMS-D8 containing Rf2 gene can restore the fertility of the corresponding sterile line.
12p vilichoo2711 25-06-2021 13 1 Download
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Pollen formation and development is important for crop fertility and is a key factor for hybrid development. Previous reports have indicated that Arabidopsis thaliana TAPETUM DETERMINANT1 (AtTPD1) and its rice (Oryza sativa) homolog, OsTPD1-like (OsTDL1A), are required for cell specialization and greatly affect pollen formation and development.
12p vijichea2711 28-05-2021 5 1 Download
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A study was undertaken to elicit information on the identification of maintainers and restorers for their utilization in hybridization programme as the parental lines. Hybrid rice is the best practically feasible and readily acceptable options available to increase the production. For the development of viable, adoptable rice hybrids through utilization of cytoplasmic genetic male sterility, the processes of identification of maintainers and restorers involving local elite lines has become inevitable.
5p angicungduoc8 07-11-2020 13 1 Download
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Thirty CGMS-based pigeonpea [Cajanus cajan (L.) Millspaugh] hybrids were synthesized by crossing six CMS lines with five ‘R’ lines and evaluated to study yield potential with the performance of their R-lines. Result indicated that the male sterile lines exhibited 100 per cent pollen sterility and R- line acts as good restorer and pollen fertility varied from 98 to 100 per cent. All crosses exhibited pollen fertility ranged from 92 to 100 per cent.
14p trinhthamhodang1215 23-09-2020 7 2 Download
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A study was undertaken to identify maintainers and restorers for their utilization in development of aromatic rice hybrids. The availability of stable cytoplasmic male sterility and fertility restoring system is vital for commercial exploitation of heterosis in rice; it means CMS is a common phenomenon that has been extensively used for production of hybrid seeds in rice crop.
9p nguaconbaynhay7 15-08-2020 11 2 Download
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Hybrid technology in many crops has contributed 20-30 per cent increase in the production and exploitation of heterosis through the development of F1 hybrids which has been recently deployed in rice with yield advantage of 20-25 per cent over best pure lines. The main aim of any plant breeding programme is to develop special high yielding hybrids and success of any plant breeding programme depends on the choice of appropriate genotypes as parents in the hybridization programme.
13p angicungduoc6 22-07-2020 13 1 Download
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The experimental was carried out at Indian Institute of Rice Research Farm, ICRISAT, Patencheru, Hyderabad, Telangana, India, during Rabi, 2014-2015 in order to estimate genetic variability, heritability and genetic advance in two hundred genotypes of rice. Analysis of variance revealed highly significant differences among the genotypes for all the characters indicating sufficient variability existed in the present material selected for the study.
9p nguaconbaynhay6 23-06-2020 16 1 Download
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The estimates of genotypic correlation coefficients in general were higher than their corresponding phenotypic correlation coefficients indicating strong inherent association among the traits. The seed yield per plant had significant and positive association with number of primary branches plant-1, number of secondary branches plant-1 , number of pods plant-1 , number of seeds plant-1 , biological yield plant-1 , seed yield (kg/ha) harvest index and 100-seed weight at both genotypic as well as phenotypic levels.
7p gaocaolon5 14-06-2020 20 1 Download
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The development of fruits without fertilization is known as parthenocarpy. Parthenocarpy improves the fruit quality, processing attributes, production and productivity of vegetable crops like tomato, cucumber, watermelon etc. Absence of seeds can enhances the shelf life of the fruits, allowing a better conservation, fruit set in adverse climatic conditions, early and offseason production of vegetable crops. Therefore, it is important to ensure yield stability regardless of environmental conditions.
20p gaocaolon5 14-06-2020 14 2 Download
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Interspecific hybridization is a useful tool in ornamental breeding to increase genetic variability and introduce new valuable traits into existing cultivars. The successful formation of interspecific hybrids is frequently limited by the presence of pre- and post-fertilization barriers.
15p viminato2711 22-05-2020 7 0 Download
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Coccinia grandis is a dioecious species of Cucurbitaceae having heteromorphic sex chromosomes. The chromosome constitution of male and female plants is 22 + XY and 22 + XX respectively. Y chromosome of male sex is conspicuously large and plays a decisive role in determining maleness.
15p viminato2711 22-05-2020 11 1 Download
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Tomato (Solanum lycopersicum) self-compatibility (SC) is defined as self-pollen tubes that can penetrate their own stigma, elongate in the style and fertilize their own ovules. Self-incompatibility (SI) is defined as self-pollen tubes that are prevented from developing in the style.
14p vihashirama2711 21-05-2020 11 2 Download
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Pectins are a group of structurally complex plant cell wall polysaccharides whose biosynthesis and function remain poorly understood. The pectic polysaccharide rhamnogalacturonan-I (RG-I) has two types of arabinogalactan side chains, type-I and type-II arabinogalactans. To date few enzymes involved in the biosynthesis of pectin have been described.
17p vihashirama2711 21-05-2020 13 0 Download
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The coordination of pollen tube (PT) growth, guidance and timely growth arrest and rupture mediated by PT-pistil interaction is crucial for the PT to transport sperm cells into ovules for double fertilization.
18p vihashirama2711 21-05-2020 16 1 Download
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In flowering plants, lipid biosynthesis and transport within anthers is essential for male reproductive success. TaMs1, a dominant wheat fertility gene located on chromosome 4BS, has been previously fine mapped and identified to encode a glycosylphosphatidylinositol (GPI)-anchored non-specific lipid transfer protein (nsLTP).
13p vishikamaru2711 29-04-2020 13 0 Download