Effects of SmartStax.sup.® and SmartStax.sup.® PRO maize on western corn rootworm larval feeding injury and adult life history parameters
Field-evolved resistance of the western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, to Bacillus thuringiensis Berliner (Bt) proteins Cry3Bb1 and Cry34/35Ab1 (now classified as Gpp34Ab1/Tpp35Ab1) expressed in the pyramid SmartStax.sup.® has been documented in areas of the United Stat...
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| creator | Reinders, Jordan D Moar, William J Head, Graham P Hassan, Safeer Meinke, Lance J |
| description | Field-evolved resistance of the western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, to Bacillus thuringiensis Berliner (Bt) proteins Cry3Bb1 and Cry34/35Ab1 (now classified as Gpp34Ab1/Tpp35Ab1) expressed in the pyramid SmartStax.sup.® has been documented in areas of the United States (U.S.) Corn Belt. SmartStax.sup.® PRO is a recently registered rootworm-active pyramid containing the same Bt proteins expressed in SmartStax.sup.® plus DvSnf7 dsRNA. Little to no published data is available comparing efficacy of the technologies or potential effects of dietary exposure on adult WCR fitness. Therefore, experiments were conducted to compare effects of adult WCR dietary exposure to SmartStax.sup.® and SmartStax.sup.® PRO on life history parameters and efficacy of the technologies in the field with both Bt-susceptible and Bt-resistant WCR populations. WCR life history parameters evaluated included adult longevity, head capsule width, egg production, and egg viability. Results of small-plot field trials indicated that both technologies provided a high level of root protection when a Bt-susceptible WCR population was present. Root protection was reduced on SmartStax.sup.® but maintained on SmartStax.sup.® PRO when WCR Bt resistance occurred. Lifetime egg production was the key life history parameter that was significantly reduced when either Bt-susceptible or Bt-resistant adult WCR were fed SmartStax.sup.® or SmartStax.sup.® PRO diet. A potential fitness advantage was apparent as egg production was significantly higher in the Bt-resistant than Bt-susceptible population. The similar response by the Bt-susceptible WCR population to SmartStax.sup.® and SmartStax.sup.® PRO indicates that results were caused by sublethal dietary exposure to Bt proteins. Adult size (males 95%) were not significantly different among treatments but longevity results were inconsistent between years. Collectively, the field efficacy and life history parameter data expand existing knowledge of SmartStax.sup.® and SmartStax.sup.® PRO technologies, which will inform practical WCR resistance management programs. |
| doi_str_mv | 10.1371/journal.pone.0288372 |
| format | Article |
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SmartStax.sup.® PRO is a recently registered rootworm-active pyramid containing the same Bt proteins expressed in SmartStax.sup.® plus DvSnf7 dsRNA. Little to no published data is available comparing efficacy of the technologies or potential effects of dietary exposure on adult WCR fitness. Therefore, experiments were conducted to compare effects of adult WCR dietary exposure to SmartStax.sup.® and SmartStax.sup.® PRO on life history parameters and efficacy of the technologies in the field with both Bt-susceptible and Bt-resistant WCR populations. WCR life history parameters evaluated included adult longevity, head capsule width, egg production, and egg viability. Results of small-plot field trials indicated that both technologies provided a high level of root protection when a Bt-susceptible WCR population was present. Root protection was reduced on SmartStax.sup.® but maintained on SmartStax.sup.® PRO when WCR Bt resistance occurred. Lifetime egg production was the key life history parameter that was significantly reduced when either Bt-susceptible or Bt-resistant adult WCR were fed SmartStax.sup.® or SmartStax.sup.® PRO diet. A potential fitness advantage was apparent as egg production was significantly higher in the Bt-resistant than Bt-susceptible population. The similar response by the Bt-susceptible WCR population to SmartStax.sup.® and SmartStax.sup.® PRO indicates that results were caused by sublethal dietary exposure to Bt proteins. Adult size (males 95%) were not significantly different among treatments but longevity results were inconsistent between years. Collectively, the field efficacy and life history parameter data expand existing knowledge of SmartStax.sup.® and SmartStax.sup.® PRO technologies, which will inform practical WCR resistance management programs.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0288372</identifier><language>eng</language><publisher>Public Library of Science</publisher><subject>Corn ; Diseases and pests ; Genetic aspects ; Growth ; Pesticide resistance ; Prevention</subject><ispartof>PloS one, 2023-07, Vol.18 (7), p.e0288372</ispartof><rights>COPYRIGHT 2023 Public Library of Science</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,864,27924,27925</link.rule.ids></links><search><creatorcontrib>Reinders, Jordan D</creatorcontrib><creatorcontrib>Moar, William J</creatorcontrib><creatorcontrib>Head, Graham P</creatorcontrib><creatorcontrib>Hassan, Safeer</creatorcontrib><creatorcontrib>Meinke, Lance J</creatorcontrib><title>Effects of SmartStax.sup.® and SmartStax.sup.® PRO maize on western corn rootworm larval feeding injury and adult life history parameters</title><title>PloS one</title><description>Field-evolved resistance of the western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, to Bacillus thuringiensis Berliner (Bt) proteins Cry3Bb1 and Cry34/35Ab1 (now classified as Gpp34Ab1/Tpp35Ab1) expressed in the pyramid SmartStax.sup.® has been documented in areas of the United States (U.S.) Corn Belt. SmartStax.sup.® PRO is a recently registered rootworm-active pyramid containing the same Bt proteins expressed in SmartStax.sup.® plus DvSnf7 dsRNA. Little to no published data is available comparing efficacy of the technologies or potential effects of dietary exposure on adult WCR fitness. Therefore, experiments were conducted to compare effects of adult WCR dietary exposure to SmartStax.sup.® and SmartStax.sup.® PRO on life history parameters and efficacy of the technologies in the field with both Bt-susceptible and Bt-resistant WCR populations. WCR life history parameters evaluated included adult longevity, head capsule width, egg production, and egg viability. Results of small-plot field trials indicated that both technologies provided a high level of root protection when a Bt-susceptible WCR population was present. Root protection was reduced on SmartStax.sup.® but maintained on SmartStax.sup.® PRO when WCR Bt resistance occurred. Lifetime egg production was the key life history parameter that was significantly reduced when either Bt-susceptible or Bt-resistant adult WCR were fed SmartStax.sup.® or SmartStax.sup.® PRO diet. A potential fitness advantage was apparent as egg production was significantly higher in the Bt-resistant than Bt-susceptible population. The similar response by the Bt-susceptible WCR population to SmartStax.sup.® and SmartStax.sup.® PRO indicates that results were caused by sublethal dietary exposure to Bt proteins. Adult size (males 95%) were not significantly different among treatments but longevity results were inconsistent between years. Collectively, the field efficacy and life history parameter data expand existing knowledge of SmartStax.sup.® and SmartStax.sup.® PRO technologies, which will inform practical WCR resistance management programs.</description><subject>Corn</subject><subject>Diseases and pests</subject><subject>Genetic aspects</subject><subject>Growth</subject><subject>Pesticide resistance</subject><subject>Prevention</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNptkM1Kw0AQxxdRsFbfwMOC58b9SHbTYyn1AwoV23uZbGbrliRbdhOrvoLv4kP4ZAb1UFAGZoYf__kdhpBLzhIuNb_e-i40UCU732DCRJ5LLY7IgI-lGCnB5PHBfkrOYtwylslcqQF5n1mLpo3UW7qsIbTLFl6S2O2Szw8KTfkXPjwuaA3uDalv6B5ji6GhxvcteN_ufahpBeEZKmoRS9dsqGu2XXj9tkHZVS2tnEX65GLre7yDADX2lnhOTixUES9-55Csbmar6d1ovri9n07mo43S2UiOUZWQMsFRWRSKGyN1Khg3BWhTyBxEVuiM6cIokXKdZUxgDn3GyLxMtRySqx_tBipcu8b6NoCpXTTric6UyqVIsz6V_JPqq8Tamf7R1vX84OALd2d5_A</recordid><startdate>20230710</startdate><enddate>20230710</enddate><creator>Reinders, Jordan D</creator><creator>Moar, William J</creator><creator>Head, Graham P</creator><creator>Hassan, Safeer</creator><creator>Meinke, Lance J</creator><general>Public Library of Science</general><scope/></search><sort><creationdate>20230710</creationdate><title>Effects of SmartStax.sup.® and SmartStax.sup.® PRO maize on western corn rootworm larval feeding injury and adult life history parameters</title><author>Reinders, Jordan D ; Moar, William J ; Head, Graham P ; Hassan, Safeer ; Meinke, Lance J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g675-39e6da4021e6fe261cc374201cba7cb38a25b7507bc624175502e8a374c38d473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Corn</topic><topic>Diseases and pests</topic><topic>Genetic aspects</topic><topic>Growth</topic><topic>Pesticide resistance</topic><topic>Prevention</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Reinders, Jordan D</creatorcontrib><creatorcontrib>Moar, William J</creatorcontrib><creatorcontrib>Head, Graham P</creatorcontrib><creatorcontrib>Hassan, Safeer</creatorcontrib><creatorcontrib>Meinke, Lance J</creatorcontrib><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Reinders, Jordan D</au><au>Moar, William J</au><au>Head, Graham P</au><au>Hassan, Safeer</au><au>Meinke, Lance J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of SmartStax.sup.® and SmartStax.sup.® PRO maize on western corn rootworm larval feeding injury and adult life history parameters</atitle><jtitle>PloS one</jtitle><date>2023-07-10</date><risdate>2023</risdate><volume>18</volume><issue>7</issue><spage>e0288372</spage><pages>e0288372-</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Field-evolved resistance of the western corn rootworm (WCR), Diabrotica virgifera virgifera LeConte, to Bacillus thuringiensis Berliner (Bt) proteins Cry3Bb1 and Cry34/35Ab1 (now classified as Gpp34Ab1/Tpp35Ab1) expressed in the pyramid SmartStax.sup.® has been documented in areas of the United States (U.S.) Corn Belt. SmartStax.sup.® PRO is a recently registered rootworm-active pyramid containing the same Bt proteins expressed in SmartStax.sup.® plus DvSnf7 dsRNA. Little to no published data is available comparing efficacy of the technologies or potential effects of dietary exposure on adult WCR fitness. Therefore, experiments were conducted to compare effects of adult WCR dietary exposure to SmartStax.sup.® and SmartStax.sup.® PRO on life history parameters and efficacy of the technologies in the field with both Bt-susceptible and Bt-resistant WCR populations. WCR life history parameters evaluated included adult longevity, head capsule width, egg production, and egg viability. Results of small-plot field trials indicated that both technologies provided a high level of root protection when a Bt-susceptible WCR population was present. Root protection was reduced on SmartStax.sup.® but maintained on SmartStax.sup.® PRO when WCR Bt resistance occurred. Lifetime egg production was the key life history parameter that was significantly reduced when either Bt-susceptible or Bt-resistant adult WCR were fed SmartStax.sup.® or SmartStax.sup.® PRO diet. A potential fitness advantage was apparent as egg production was significantly higher in the Bt-resistant than Bt-susceptible population. The similar response by the Bt-susceptible WCR population to SmartStax.sup.® and SmartStax.sup.® PRO indicates that results were caused by sublethal dietary exposure to Bt proteins. Adult size (males 95%) were not significantly different among treatments but longevity results were inconsistent between years. Collectively, the field efficacy and life history parameter data expand existing knowledge of SmartStax.sup.® and SmartStax.sup.® PRO technologies, which will inform practical WCR resistance management programs.</abstract><pub>Public Library of Science</pub><doi>10.1371/journal.pone.0288372</doi></addata></record> |
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| source | DOAJ Directory of Open Access Journals; Public Library of Science (PLoS) Journals Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Corn Diseases and pests Genetic aspects Growth Pesticide resistance Prevention |
| title | Effects of SmartStax.sup.® and SmartStax.sup.® PRO maize on western corn rootworm larval feeding injury and adult life history parameters |
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