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| Finzi,Rafael Resende; Maciel,Gabriel Mascarenhas; Peres,Hugo Gabriel; Silva,Marina Freitas e; Peixoto,Joicy Vitória Miranda; Gomes,Danilo Araújo. |
| ABSTRACT The use of dwarf lines to obtain mini-tomato hybrids has provided agronomic and economic benefits. In Brazil, round tomatoes predominate over other varieties. The benefits of using a dwarf parent in round tomato hybrids has yet to be explored, making it important to develop dwarf round tomato lines. Backcrossing is the most suitable method to develop these lines. Evaluation and selection of the dwarf populations can improve the development of such lines. Thus, the aim of this study was to select BC1F2 populations of dwarf round tomatoes with agronomic potential and high-quality fruit. The study was conducted at the Vegetable Experimental Station of the Federal University of Uberlândia (UFU). A randomized block design was used, with 15 treatments... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Backcrossing; Dwarfism; Solanum lycopersicum.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100205 |
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| Depa, L.; Kanturski, M.; Taszakowski, A.; Wieczorek, K.. |
| Firm matching of genitals during copulation is of critical importance to effective insemination and thus, gene flow. During the evolution of insects, an effective position during copulation promoted higher fecundity through control over the act of mating or elimination of competitors. Usually during insect copulation, either twisting or flexing of the male abdomen occurs, and genitals remain symmetrically or asymmetrically disposed following changes in the mating position. However, it is always the dorsal side of the male genitalia that makes contact with the ventral side of female abdomen. Here we present the unusual case of a ‘belly-to-belly’ copulation, with symmetrically positioned male genitals and no twisting of the abdomen. During the mating of two... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aphididae; Dwarfism; Mate guarding; Sexual competition; Speciation; 42.75. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/480053 |
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| Fraaije, R.H.B.; Vega, F.J.; Bakel, B.W.M. van; Garibay-Romero, L.M.. |
| Two new brachyuran species are described for the Upper Cretaceous Mexcala Formation, Guerrero State, Mexico. Longusorbis quadratus new species (Coniacian, Temalac region) is the oldest and southernmost record for the genus. Xanthosia zoquiapensis new species (Campanian, Zoquiapa region) is the first record for the genus in Mexico. In addition, the age for Costacopluma bishopi Vega and Feldmann is discussed (Coniacian, Temalac region) and represents the oldest and southernmost record for Cretaceous representatives of this genus in North America. All specimens are considerably smaller compared to other species of the same genera and are interpreted as the first example of brachyuran dwarfism in the geological record. These species add new insight into... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Dwarfism; Decapoda; Cretaceous; New species; Mexico; 38.22; 42.74. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/214533 |
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