Cross-species transferability of microsatellite markers from six aphid (Hemiptera: Aphididae) species and their use for evaluating biotypic diversity in two cereal aphids.

Cross-species transferability of microsatellite markers from six aphid (Hemiptera: Aphididae) species and their use for evaluating biotypic diversity in two cereal aphids. Research Abstract Details 

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Cross-species transferability of microsatellite markers from six aphid (Hemiptera: Aphididae) species and their use for evaluating biotypic diversity in two cereal aphids. Abstract Text:

Y Weng,P Azhaguvel,G J Michels,J C Rudd,Y Weng,P Azhaguvel,G J Michels,J C Rudd,

The abundance and distribution of microsatellites, or simple sequence repeats (SSRs) were explored in the expressed sequence tag (EST) and genomic sequences of the pea aphid, Acyrthosiphon pisum (Harris), and the green peach aphid, Myzus persicae (Sulzer). A total of 108 newly developed, together with 40 published, SSR markers were investigated for their cross-species transferability among six aphid species. Genetic diversity among six greenbug, Schizaphis graminum (Rondani) and two Russian wheat aphid, Diuraphis noxia (Kurdjumov) biotypes was further examined with 67 transferable SSRs. It was found that the pea aphid genome is abundant in SSRs with a unique frequency and distribution of SSR motifs. Cross-species transferability of EST-derived SSRs is dependent on phylogenetic closeness between SSR donor and target species, but is higher than that of genomic SSRs. Neighbor-joining analysis of SSR data revealed host-adapted genetic divergence as well as regional differentiation of greenbug biotypes. The two Russian wheat aphid biotypes are genetically as diverse as the greenbug ones although it was introduced into the USA only 20 years ago. This is the first report of large-scale development of SSR markers in aphids, which are expected to have wide applications in aphid genetic, ecological and evolutionary studies.

Cross-species transferability of microsatellite markers from six aphid (Hemiptera: Aphididae) species and their use for evaluating biotypic diversity in two cereal aphids. Publishing Authors By Initials

Y Weng,P Azhaguvel,GJ Michels,JC Rudd,Y Weng,P Azhaguvel,GJ Michels,JC Rudd,

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Cross-species transferability of microsatellite markers from six aphid (Hemiptera: Aphididae) species and their use for evaluating biotypic diversity in two cereal aphids. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Insect molecular biology

VOLUME: 16

Page Numbers: 613-22

Journal Abbreviation: Insect Mol. Biol.

ISSN: 0962-1075

DAY: 22

MONTH: 08

YEAR: 2007

Cross-species transferability of microsatellite markers from six aphid (Hemiptera: Aphididae) species and their use for evaluating biotypic diversity in two cereal aphids. Information

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LANGUAGE: eng

NlmUniqueID: 9303579

Cross-species transferability of microsatellite markers from six aphid (Hemiptera: Aphididae) species and their use for evaluating biotypic diversity in two cereal aphids. Keywords Mesh Terms:

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Grant and Affiliation Information for Cross-species transferability of microsatellite markers from six aphid (Hemiptera: Aphididae) species and their use for evaluating biotypic diversity in two cereal aphids.

AFFILIATION: Texas A&M University, Agricultural Research and Extension Center, Amarillo, TX 79106, USA. yweng@ag.tamu.edu

Country: England

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MEDLINETA: Insect Mol Biol

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