José Severino de Lira Júnior, J. Bezerra, Domingos Eduardo Guimarães Tavares de Andrade
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引用次数: 2
Abstract
Leaf spinescence in pineapple plants was evaluated in a total of 2.014 F1 individuals as follows: 1.125 plants of the progeny of the Imperial BRS cv. × Pérola cv. cross, and 889 plants of the progeny of the Pico de Rosa cv. × BRS Imperial cv. cross. The genetic hypothesis with two loci and epistatic interaction of the piping (P) over spiny (S) trait was tested. The chi-square test was performed on deviations between the observed and expected numbers based on the genetic hypotheses formulated. The “BRS Imperial” × “Pérola” and “Pico de Rosa” × “BRS Imperial” progenies segregated into 1:0:1 (spineless:spiny tip:spiny), expressing phenotypes of their respective parents. The spineless leaf (“BRS Imperial”) is determined by the “Ppss” genotype, with the locus “P” in heterozygosity and the locus “S” in recessive homozygosity. The spiny leaf margin (“Pérola” and “Pico de Rosa”) is controlled by the “ppss” genotype.
以凤梨为研究对象，对2.014个F1个体的叶片棘性进行了评价，结果如下:帝国BRS株系后代1.125株;xpsamora cv。杂交植株889株;× BRS帝国简历十字架。验证了管状性状(P)优于刺状性状(S)的双位点遗传假说和上位互作假说。根据制定的遗传假设，对观察到的数字和期望的数字之间的偏差进行卡方检验。“BRS Imperial”דp罗拉”和“Pico de Rosa”דBRS Imperial”后代分离成1:0:1(无刺:带刺尖端:带刺)，表达各自父母的表型。无刺叶(“BRS Imperial”)由“Ppss”基因型决定，基因座“P”为杂合性，基因座“S”为隐性纯合性。带刺的叶缘(“psamola”和“Pico de Rosa”)由“ppss”基因型控制。
期刊介绍：
The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL.
It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.
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