Cytogenetics of the vegetable crops IV. Legumes (continued)

Yarnell, S. H.

doi:10.1007/bf02859129

Cited by 31 publications

(9 citation statements)

References 139 publications

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“…The V locus has a pleiotropic effect on seed coat color (Prakken. 1970), changing black Yarnell (1965) reviewed the literature on the genetics of partly colored seeds, and a tabular summary of the more pertinent findings is provided in Table 2. The classes bipunctata through piebald are best illustrated by Lamprecht (1934Lamprecht ( , 1940a.…”

Section: Resultsmentioning

confidence: 99%

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A New Genotype for White Seed Coat Discovered in `Early Wax' Snap Bean

Bassett¹,

Blom²

1991

jashs

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The white-seeded snap bean `Early Wax' (Phaseolus vulgaris L.) was crossed with a black-seeded breeding line 5-593. The F2 segregation data are consistent with a three-gene model, in which all three genes must be homozygous recessive to give white seed coat. One of the genes is t because of segregation in F2 for plants with white flowers and partial seed coat coloration. We hypothesize that the genes ers and ers2 in the presence of f block all seed color expression in all genes for partial coloration of seed. The hypothesis of three recessive genes was confirmed in a backcross test involving `Early Wax' x F1. The interaction of ers and ers2 was tested in progeny tests of partly colored BC-F1 plants. One of the erasure genes, ers2, blocks color expression in color zones close to the hilum, but only in the presence of ers. The other erasure gene, ers, blocks color expression only in color zones beyond those close to the hilum in a manner similar to the restr locus of Prakken (1972). The old hypothesis that partly colored seed phenotypes require the presence of a second factor e in addition to t, where the function of e is vague and unspecified, should be discarded for lack of supporting evidence, Under the new hypothesis, soldier series phenotypes (e.g., bipunctata, arcus, virgata, and virgarcus) may express in t ers Ers2 by action of ers or in t Ers Ers2 by action of various genes for partly colored seeds other than ers.

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Section: Resultsmentioning

confidence: 99%

“…Table 2. Genotypes corresponding to particular patterns on partly colored common bean seeds as summarized by Yarnell (1965) and us.…”

Section: Resultsmentioning

confidence: 99%

A New Genotype for White Seed Coat Discovered in `Early Wax' Snap Bean

Bassett¹,

Blom²

1991

jashs

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“…Por ouro lado, considerando as famílias provenientes das plantas F 2 com sementes sem halo, somente eram esperadas sementes sem halo, no entanto, cerca de 24% apresentaram-se segregantes. Em razão de provavelmente ocorrerem vários genes modificadores da cor do halo (Yarnell, 1965;Vieira, 1967;Bassett, 1991;Hosfield, 2001), ocorreram dificuldades em distinguir algumas sementes F 2 com halo colorido, porém de cor muito clara, daquelas com ausência de halo. Além disso, as alterações de cor das sementes devidas ao ambiente podem causar a semelhança entre as cores do halo e de fundo da semente e certamente também contribuíram para aumentar a dificuldade na identificação da presença de halo em algumas sementes.…”

Section: Resultsunclassified

Controle genético de alguns caracteres relacionados à cor da semente de feijão no cruzamento Rosinha X Esal 693

Baldoni¹,

Teixeira

Santos³

2008

Acta Sci. Agron.

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A cor da semente do feijão, Phaseolus vulgaris L. (Leguminosae-Faboideae), é de grande importância para o consumo no Brasil, por isso, o conhecimento do seu controle genético, em um cruzamento particular, orienta no dimensionamento da população segregante para a seleção do fenótipo de interesse. Então, objetivou-se determinar o controle genético de alguns caracteres relacionados à cor da semente, a partir do cruzamento Rosinha x ESAL 693 (tipo carioca) e prever as chances de seleção dos fenótipos semelhantes aos das cultivares Carioca e Rosinha. Foram avaliadas as cores de fundo e a presença/ausência de listras e halos nas sementes produzidas em plantas F2 e em plantas das famílias F2:3. Constatou-se apenas um gene responsável pela ocorrência de listras na semente e outro pela cor bege clara ou escura de fundo da semente tipo carioca. Para os caracteres presença ou ausência de halo e tipo de semente igual ou diferente da cultivar Rosinha, foram identificados dois genes em cada caso. Excetuando-se a presença de listra, certamente estão também envolvidos genes modificadores no controle dos demais caracteres. Considerando todos os caracteres, esperam-se 11,26% das plantas F2 produzindo sementes do tipo carioca ideal e 12,82% das plantas com sementes do tipo rosinha

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“…The genetic control of the stringless character is apparently monofactorial (YARNELL, 1965;ATKIN, 1972). As in many other domesticated plants seed dispersal mechanism development can be suppressed by single mutations.…”

Section: 2seed Dispersal Mechanismsmentioning

confidence: 99%

“…1, which have been quantitatively mapped to one or more other genes in common bean. The descriptive information was taken either from YARNELL (1965) or from the original reports. arg with Y produces a "s il ver" or greeni sh gray pod; arg Wlth y gives a white pod.…”

Section: Linkage Mapping By Lamprecht and Others Prior To 1961mentioning

confidence: 99%

Genetic Resources of Phaseolus Beans

Gepts¹

1988

Current Plant Science and Biotechnology in Agriculture

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The bookseries is intended for readers ranging from advanced students to senior research scientists and corporate directors interested in acquiring in-depth, stateof-the-art knowledge about research findings and techniques related to plant science and biotechnology. While the subject matter will relate more particularly to agricultural applications, timely topics in basic plant science and biotechnology will be explored as well. Some volumes will report progress in rapidly advancing disciplines through proceedings of symposia and workshops while others will detail fundamental information of an enduring nature that will be referenced repeatedly.

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Cytogenetics of the vegetable crops IV. Legumes (continued)

Cited by 31 publications

References 139 publications

A New Genotype for White Seed Coat Discovered in `Early Wax' Snap Bean

A New Genotype for White Seed Coat Discovered in `Early Wax' Snap Bean

Controle genético de alguns caracteres relacionados à cor da semente de feijão no cruzamento Rosinha X Esal 693

Genetic Resources of Phaseolus Beans

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