Genetic variation and clonal diversity of Bromus ircutensis Kom. in the Otingdag sandy land detected by ISSR markers

Yu, Teng-Lang; Han, Bing; Tian, Qingsong; Liu, A.

doi:10.1134/s1022795411060172

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…In addition, gene flow is also limited by pollen dispersal in Opuntia microdasys, based on the behavior of the primary pollinator (Piña et al, 2007), in addition to either clonal or sexual offspring dispersal. Furthermore, other examples of similar migration rates have been shown for very well-structured populations (Gélin et al, 2017;Yu, Han, Tian, & Liu, 2011) or for small, isolated populations (Kim & Chung, 1995). An extreme example was found in Opuntia echios on the Galapagos Islands, in which no clonal individuals were found in a sample of 444 individuals collected in 22 localities (Helsen, Verdyck, & Van Dongen, 2011).…”

Section: Discussionmentioning

confidence: 63%

Influence of fruit dispersal on genotypic diversity and migration rates of a clonal cactus from the Chihuahuan Desert

García‐Morales

Carrillo-Angeles

Golubov

et al. 2018

Ecology and Evolution

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The diverse offspring of clonal species differ in their dispersability, influencing genotypic diversity and clonal structure. Here, we determined dispersal patterns and their impact on genetic structure in Opuntia microdasys, a self‐incompatible cactus with three dispersal units (one sexual and two clonal). We analyzed dispersal, using experiments at three populations, and assessed multilocus genotypes (ISSR markers) of all individuals in 10 clumps per population with known reproductive origin (sexual or clonal). Genotype of all samples, population structure, and migration between clumps and populations were assessed with GenAlEx and GenoDive, assuming higher genotypic diversity and migration when sexual reproduction is more frequent. We determined the most likely number of genetic clusters with STRUCTURE and geneland. Dispersal differed among populations; primary dispersal occurred at short distances and was farthest on steep slopes, and dispersal distance increased after secondary dispersal. Clumps had 116 different multilocus genotypes in three spatially explicit genetic clusters. We detected genetic structure at small scale, genotypic diversity among clumps varied between populations; diversity decreased while clonal dominance increased, and the most variation occurred among clumps. Genetic structure was moderate, suggesting gene flow by seed dispersal allows slight differentiation among population at large scales. Genetic diversity within clumps was the lowest because dispersal of clonal propagules was limited and caused genotypic dominance at local scale. However, the combined dispersal pattern of sexual and clonal dispersal units is fine‐tuned by environmental factors, generating a range of genetic diversity among clusters and populations. This pattern suggests that genetic structure of clonal plants is more dynamic than thought, and dispersal of different types of offspring affects genetic structure at many scales.

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Section: Discussionmentioning

confidence: 63%

Influence of fruit dispersal on genotypic diversity and migration rates of a clonal cactus from the Chihuahuan Desert

García‐Morales

Carrillo-Angeles

Golubov

et al. 2018

Ecology and Evolution

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“…A high DNA concentration is not required in the use of ISSR and no previous knowledge in the genome sequence of the studied individual is needed when designing the primers (Joshi et al 2000), leaning on the high grade of polymorphism and huge distribution of microsatellites to detect low levels of differentiation, generating several polymorphic band (Yua et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Variabilidad genética en poblaciones de Aegorhinus superciliosus (Coleoptera: Curculionidae), en Maytenus boaria (Celastrales: Celastraceae) de Chile

Huala

Paredes

Salazar

et al. 2018

Rev. Colomb. Entomol.

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El cabrito del frambueso (Aegorhinus superciliosus), es un curculiónido nativo de Chile y parte de Argentina. En Chile, habita la zona centro-sur y es considerado una plaga importante, ya que afecta a las plantaciones de frutales arbustivos de avellano europeo (Corylus avellana) y arándano (Vaccinium corymbosum), causando cuantiosos daños económicos a la industria frutícola de la zona. El objetivo de este estudio fue analizar la variabilidad genética de las poblaciones de A. superciliosus asociadas a Maytenus boaria. Ejemplares adultos de A. superciliosus fueron recolectados en las poblaciones de Máfil, Futrono, La Unión y Frutillar. Su clasificación y almacenamiento se realizó en el Laboratorio de Investigación en Biotecnología Animal (LINBA) de la Universidad de La Frontera, Temuco, Chile. El análisis molecular se realizó mediante Marcadores Intermicrosatelitales (ISSR). Los resultados arrojaron una alta similitud génica entre todas las poblaciones de estudio. Se observó una correlación positiva entre la variabilidad genética y la distribución geográfica. Las poblaciones distribuidas más al sur (Futrono- La Unión- Frutillar) presentaron entre si una elevada similitud génica, situación asociada a la abundante presencia de M. boaria el cual permite el flujo génico a lo largo del territorio donde se realizó el estudio. El bajo nivel de variabilidad genética en las poblaciones de A. superciliosus del sur de Chile, está probablemente asociado al gran número de huéspedes encontrados en los ecosistemas agrícolas y forestales, que tienen la capacidad de colonizar grandes áreas en esta zona del país. Estas condiciones contribuyen a incrementar el flujo génico de A. superciliosus, transformando a este insecto en la mayor y más peligrosa plaga de arándanos en Chile.

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Evaluation of the genetic structure of Bromus inermis populations from chemically and radioactively polluted areas using microsatellite markers from closely related species

Антонова

Röder

2022

International Journal of Radiation Biology

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Genetic variation and clonal diversity of Bromus ircutensis Kom. in the Otingdag sandy land detected by ISSR markers

Cited by 3 publications

References 34 publications

Influence of fruit dispersal on genotypic diversity and migration rates of a clonal cactus from the Chihuahuan Desert

Influence of fruit dispersal on genotypic diversity and migration rates of a clonal cactus from the Chihuahuan Desert

Variabilidad genética en poblaciones de Aegorhinus superciliosus (Coleoptera: Curculionidae), en Maytenus boaria (Celastrales: Celastraceae) de Chile

Evaluation of the genetic structure of Bromus inermis populations from chemically and radioactively polluted areas using microsatellite markers from closely related species

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