نتایج جستجو برای: issr

تعداد نتایج: 1940  

Journal: :Tree physiology 2005
T Balasaravanan P Chezhian R Kamalakannan M Ghosh R Yasodha M Varghese K Gurumurthi

Eucalyptus is the most economically important hardwood plantation tree cultivated in tropical and subtropical countries. Inter-simple sequence repeat (ISSR) markers were used to evaluate genetic relationships within and between individuals of six Eucalyptus species. A total of 583 loci (265 to 1535 bp) were amplified from 149 individuals belonging to the six Eucalyptus species using seven ISSR ...

Journal: :Genetics and molecular research : GMR 2013
O N de Jesus J P X de Freitas J L L Dantas E J de Oliveira

We examined the genetic diversity of papaya (Carica papaya) based on morpho-agronomic and molecular data. Twenty-seven genotypes grown in Brazil were analyzed with 11 AFLP primer combinations, 23 ISSR markers, 22 qualitative, and 30 quantitative descriptors. For the joint analyses, we used the Gower algorithm (Joint Gower) and the average value of the individual dissimilarity matrix for each ty...

Journal: :Genetics and molecular research : GMR 2016
S M Rodrigues E F Moura G K S Ramos M S P Oliveira

Native of the Amazon, the nanche (Byrsonima crassifolia) is a fruit cultivated by family farmers and used in cooking; as such, it represents an opportunity for regional agribusiness. The Embrapa Eastern Amazon set up an active germplasm bank (BAG) consisting of 22 accessions sampled in 11 municipalities of Pará State. Due to its economic potential, there is an interest to advance the genetic br...

Journal: :Archives of otolaryngology--head & neck surgery 2007
Daniel L Stoler Norma J Nowak Sei-ichi Matsui Sam M Wiseman Neng Chen Smitha S Dutt Jeremy D Bartos Thom R Loree Nestor R Rigual Wesley L Hicks Sheila N Sait Garth R Anderson

OBJECTIVES To assess the forms and extent of genomic instability in thyroid cancers and colorectal neoplasms and to determine if such measurements could explain the generally excellent prognosis of thyroid malignant neoplasms compared with colon carcinoma. DESIGN Tumor genome analyses. Genomic instability was measured by the following 4 methods, listed in ascending order based on the size of ...

2010
FRANCISCO J. CAMACHO AARON LISTON

Species of Botrychium reproduce by spores that form subterranean gametophytes and a few, like B. pumicola, also reproduce asexually with subterranean sporophytic gemmae. The goal of this study was to examine the genetic diversity of B. pumicola populations and to better understand the role of gemmae. Ninety-nine individuals from three monitored populations were sampled. The technique of inter-s...

2017
Puchang Wang Yu Zhang Lili Zhao Bentian Mo Tianqiong Luo

Sophora davidii (Franch.) Kom. ex Pavol is an important medicinal plant and a feeding scrub with ecological value. The effects of different gamma irradiation doses (20-140 Kr) on seed germination and seedling morphology were investigated in S. davidii, and intersimple sequence repeat (ISSR) markers were used to identify the DNA polymorphism among mutants. Significant variations were observed fo...

Journal: :Genetics and molecular research : GMR 2008
P P Batista J F Santos N T Oliveira A P D Pires C M S Motta E A Luna-Alves Lima

The Aspergillus genus belongs to a filamentous fungal group characterized by wide dispersion in the environment. Some species are associated with diseases, especially in immunocompromised patients, while others are of economical importance due to aflatoxin production or biotechnological applications. Its species identification is nowadays performed by traditional techniques combined with molecu...

Journal: :Molecular ecology 1998
A D Wolfe Q Y Xiang S R Kephart

Inferences regarding hybridization rely on genetic markers to differentiate parental taxa from one another. Intersimple sequence repeat (ISSR) markers are based on single-primer PCR reactions where the primer sequence is derived from di- and trinucleotide repeats. These markers have successfully been used to assay genetic variability among cultivated plants, but have not yet been tested in natu...

2014
Wei Zhao Xiaozheng Shi Jiangnan Li Wei Guo Chengbai Liu Xia Chen

Rhodiola sachalinensis is an endangered species with important medicinal value. We used inter-simple sequence repeat (ISSR) and methylation-sensitive amplified polymorphism (MSAP) markers to analyze genetic and epigenetic differentiation in different populations of R. sachalinensis, including three natural populations and an ex situ population. Chromatographic fingerprint was used to reveal HPL...

2012
Fei Zhang Yaying Ge Weiyong Wang Xinying Yu Xiaolan Shen Jianxin Liu Xiaojing Liu Danqing Tian Fuquan Shen Yongming Yu

Bromeliads are of great economic importance in flower production; however little information is available with respect to genetic characterization of cultivated bromeliads thus far. In the present study, a selection of cultivated bromeliads was characterized via inter-simple sequence repeat (ISSR) markers with an emphasis on genetic diversity and population structure. Twelve ISSR primers produc...

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