Genetic diversity among colored cotton genotypes to obtain potential parent plants

Abstract: The objective of this work was to evaluate the efficiency of the straw and oxalic acid tests to identify resistance levels of white and colored cotton (Gossypium hirsutum) genotypes to white mold (Sclerotinia sclerotiorum). Ten genotypes were evaluated: five with colored fiber, four with white fiber, and a white-fiber susceptible genotype. The genotypes MAB-1 with white fiber and MAC-2 with colored fiber were the most resistant to white mold, according to the immersion in oxalic acid and straw tests, respectively. These genotypes can be recommended as resistance sources for breeding programs. Both assessed tests are complementary to each other; however, the straw test is more efficient in evaluating the resistance of cotton genotypes to white mold.

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Microsatellite-based characterization of cotton genotypes for verticillium wilt and fiber quality traits

Turkish Journal of Biochemistry ◽

10.1515/tjb-2017-0169 ◽

2017 ◽

Vol 43 (3) ◽

pp. 277-288

Author(s):

Amna Saeed ◽

Eminur Elçi

Keyword(s):

Genetic Diversity ◽

Ssr Markers ◽

Verticillium Wilt ◽

Fiber Quality ◽

Stress Factors ◽

Quality Traits ◽

Cotton Yield ◽

Fiber Quality Traits ◽

Resistant Cultivars ◽

Cotton Genotypes

Abstract Cotton (Gossypium hirsutum L.) is the most important natural textile fiber crop grown worldwide. Several biotic and abiotic stress factors affect cotton yield due to lower genetic diversity for the traits of particular interest. Verticillium wilt (VW) is one of the major factors incurring huge cotton yield losses. The most effective management option against VW is the development of resistant cultivars. The resistant cultivars must also have superior fiber quality and yield traits. Therefore, the current study was aimed at screening some of the identified simple sequence repeats (SSR) markers for VW resistance and fiber quality traits of cotton genotypes in Turkey. Fifty different cultivars were screened with 30 SSR markers. Polymerase chain reaction (PCR) was conducted to amplify the SSR markers. The amplified bands were scored as 0 or 1 for absence and presence, respectively. For the molecular data analysis, polymorphism information content (PIC) values of molecular markers were calculated. Among tested SSR markers 13 were found polymorphic, which produced a total of 677 loci. The number of alleles per marker ranged from 1 to 4 and, overall average PIC values of markers ranged from 0.00 to 0.76, respectively. Principal component analysis executed on presence absence data yielded two distinct groups of cultivars screened. Hierarchical clustering revealed low genetic diversity among the tested cultivars. Based on the results TamcotCamdES, Gloria, Natalia, Lydia, Teks, Tamcot SP37H, N87 and BA525 are the promising cultivars for further breeding studies. The results of the current study also revealed that 4 SSR markers (DPL752 and DPL322 for fiber traits, DPL0022 and GH215 for VW resistance) out of 30 could be used for improving VW resistance and fiber quality in cotton through marker assisted selection.

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Assessment of genetic diversity of cotton genotypes for various economic traits against cotton leaf curl disease (CLCuD)

Genetics and Molecular Research ◽

10.4238/gmr16019446 ◽

2017 ◽

Vol 16 (1) ◽

Cited By ~ 2

Author(s):

M. Javed ◽

S.B. Hussain ◽

M. Baber

Keyword(s):

Genetic Diversity ◽

Cotton Leaf ◽

Economic Traits ◽

Cotton Leaf Curl Disease ◽

Cotton Genotypes ◽

Leaf Curl Disease ◽

Leaf Curl

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Evaluating Genetic Diversity of Chilling Stress in Cotton Genotypes

Plant Breeding and Seed Science ◽

10.2478/v10129-011-0082-2 ◽

2014 ◽

Vol 68 (1) ◽

Cited By ~ 1

Author(s):

Omid Sofalian ◽

Somayyeh Azimy ◽

Sodabeh Jahanbakhsh ◽

Saeid Khomari ◽

Sara Dezhsetan

Keyword(s):

Genetic Diversity ◽

Chilling Stress ◽

Cotton Genotypes

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Genetic Diversity of Colored Cotton Analyzed by Simple Sequence Repeat Markers

International Journal of Plant Sciences ◽

10.1086/593037 ◽

2009 ◽

Vol 170 (1) ◽

pp. 76-82 ◽

Cited By ~ 4

Author(s):

Dong‐Lei Sun ◽

Jun‐Ling Sun ◽

Yin‐Hua Jia ◽

Zhi‐Ying Ma ◽

Xiong‐Ming Du

Keyword(s):

Genetic Diversity ◽

Simple Sequence Repeat ◽

Sequence Repeat ◽

Simple Sequence Repeat Markers ◽

Colored Cotton ◽

Simple Sequence

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ESTRATÉGIAS DE MANEJO DO DÉFICIT HÍDRICO EM FASES FENOLÓGICAS DO ALGODOEIRO COLORIDO

Irriga ◽

10.15809/irriga.2020v25n4p656-662 ◽

2020 ◽

Vol 25 (4) ◽

pp. 656-662

Author(s):

Lauriane Almeida dos Anjos Soares ◽

KAROLINE MARIA MENDES DIAS ◽

HEMILE MACHADO NASCIMENTO ◽

GEOVANI SOARES DE LIMA ◽

KELDER JOSÉ ALVES DE OLIVEIRA ◽

...

Keyword(s):

Gossypium Hirsutum ◽

Water Deficit ◽

Irrigated Agriculture ◽

Limiting Factor ◽

Gossypium Hirsutum L ◽

Root Shoot Ratio ◽

Colored Cotton ◽

Cotton Genotypes ◽

E Mail ◽

Phenological Phases

ESTRATÉGIAS DE MANEJO DO DÉFICIT HÍDRICO EM FASES FENOLÓGICAS DO ALGODOEIRO COLORIDO LAURIANE ALMEIDA DOS ANJOS SOARES1; KAROLINE MARIA MENDES DIAS2; HEMILE MACHADO NASCIMENTO3; GEOVANI SOARES DE LIMA4; KELDER JOSÉ ALVES DE OLIVEIRA5 E SAULO SOARES DA SILVA6 1 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, UFCG, Rua Jario Vieira Feitosa, 1770, Bairro dos Pereiros, Pombal, PB, Brasil. E-mail: [email protected] 2 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, UFCG, Rua Jario Vieira Feitosa, 1770, Bairro dos Pereiros, Pombal, PB, Brasil. E-mail: [email protected]. 3 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, UFCG, Rua Jario Vieira Feitosa, 1770, Bairro dos Pereiros, Pombal, PB, Brasil. E-mail: [email protected] 4 Unidade Acadêmica de Engenharia Agrícola, Universidade Federal de Campina Grande, UFCG, Rua Aprígio Veloso, 882 -Universitário, Campina Grande, PB, Brasil. E-mail: [email protected] 5 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, UFCG, Rua Jario Vieira Feitosa, 1770, Bairro dos Pereiros, Pombal, PB, Brasil. E-mail: [email protected] 6 Unidade Acadêmica de Engenharia Agrícola, Universidade Federal de Campina Grande, UFCG, Rua Aprígio Veloso, 882 -Universitário, Campina Grande, PB, Brasil. E-mail: [email protected] 1 RESUMO A escassez hídrica é um fator limitante para a agricultura irrigada, principalmente em algumas fases do algodoeiro, afetando os processos fisiológicos e consequentemente a produtividade. Neste contexto, objetivou-se com este trabalho avaliar a fitomassa e os componentes de produção de genótipos de algodoeiro colorido sob déficit hídrico nas diferentes fases de fenológicas da planta. As plantas foram conduzidas em lisímetros sob condições de campo, no Centro de Ciências e Tecnologia Agroalimentar pertencente à Universidade Federal de Campina Grande, na cidade de Pombal-PB. O delineamento utilizado foi em blocos ao acaso em esquema fatorial 3 x 3, sendo três genótipos de algodão de fibra colorida (BRS Rubi, BRS Topázio e BRS Safira) irrigados sob déficit hídrico durante as três fases de desenvolvimento da cultura (vegetativa, floração e frutificação). A relação raiz/parte aérea é mais sensível aos efeitos do déficit hídrico na fase de floração e formação dos capulhos. Dentre os genótipos o BRS Topázio é o mais tolerante ao déficit hídrico (40% da ETr) durante a fase vegetativa para o número de sementes totais. O déficit hídrico na fase de frutificação do algodoeiro colorido pode ser utilizado no cultivo do algodoeiro com as menores perdas no peso de 100 sementes. Palavras-chave: Gossypium hirsutum L., fitomassa, produção SOARES, L. A. dos A.; DIAS, K. M. M.; NASCIMENTO, H. M.; LIMA, G. S. de OLIVEIRA, K. J. A. de; SILVA, S. S. da STRATEGIES FOR THE MANAGEMENT OF WATER DEFICIT IN PHENOLOGICAL PHASES OF COLORED COTTON 2 ABSTRACT Water scarcity is a limiting factor for irrigated agriculture, mainly in some phases of cotton, affecting physiological processes and consequently productivity. In this context, this work aimed to evaluate the phytomass and production components of colored cotton genotypes under water deficit in different phenological phases of the plant. The plants were conducted in lysimeters under field conditions, at the Center for Science and Agrifood Technology belonging to the Federal University of Campina Grande, in the city of Pombal-PB. The design used was in a randomized block in a 3 x 3 factorial scheme, with three colored fiber cotton genotypes (BRS Rubi, BRS Topázio and BRS Safira) irrigated under water deficit during the three stages of crop development (vegetative, flowering and fruiting). The root/shoot ratio is more sensitive to the effects of water deficit during flowering and boll formation. Among the genotypes, BRS Topázio is the most tolerant to water deficit (40% of ETr) during the vegetative phase for the number of total seeds. The water deficit in the fruiting stage of colored cotton can be used in the cultivation of cotton with the lowest losses in the weight of 100 seeds. Keywords: Gossypium hirsutum L., phytomass, production

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Molecular Dissection for Boll Shedding in Upland Cotton Using Microsatellites

Asian Journal of Biochemistry, Genetics and Molecular Biology ◽

10.9734/ajbgmb/2021/v9i430226 ◽

2021 ◽

pp. 34-41

Author(s):

Kanwal Zia ◽

Syed Bilal Hussain

Keyword(s):

Genetic Diversity ◽

Dna Markers ◽

Association Studies ◽

Molecular Genetic ◽

Phenotypic Traits ◽

Marker Assisted Breeding ◽

Molecular Genetic Diversity ◽

Low Genetic Diversity ◽

Cotton Genotypes ◽

Single Cluster

DNA markers application in marker-assisted breeding of cotton is handicapped due to low genetic diversity in cotton germplasm. The present study was designed to identify DNA markers, predominately simple sequence repeats (SSRs), associated with tolerance/resistance to heat stress as a consequence of boll shedding. To find out the genetic diversity a total of 24 cotton genotypes and 50 SSR primers were used. Total 288 alleles were produced with an average of 5.7 alleles per primer. Bootstrap cluster analysis used to generate a dendrogram that cluster the 24 accessions into two main clusters. Eleven out of 24 genotypes fall in a single cluster. Phenotypically H-4074 gives more diversity, while genotypically H-4074 sheared the same genetic background as H-4070, H-4091 and H-4090. Low genetic diversity was observed among both genotypic and phenotypic as maximum varieties fall in single group. This study helps for selecting diverse accessions with multiple phenotypic traits, which were drought to boll shedding. It suggests further elaborating the molecular genetic diversity by using new SSR marker to improve the yield of cotton cultivars. These preliminary results set the stage for initiating in depth marker-trait association studies, which will be instrumental for initiating marker-assisted breeding in cotton.

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