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Comparative analysis of Cucurbita pepo metabolism throughout fruit development in acorn squash and oilseed pumpkin 被引量:7

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摘要 Both the fruit mesocarp and the seeds of winter squash can be used for consumption,although the focus of breeding efforts varies by cultivar.Cultivars bred for fruit consumption are selected for fruit mesocarp quality traits such as carotenoid content,percent dry matter,and percent soluble solids,while these traits are essentially ignored in oilseed pumpkins.To compare fruit development in these two types of squash,we sequenced the fruit transcriptome of two cultivars bred for different purposes:an acorn squash,‘Sweet REBA’,and an oilseed pumpkin,‘Lady Godiva’.Putative metabolic pathways were developed for carotenoid,starch,and sucrose synthesis in winter squash fruit and squash homologs were identified for each of the structural genes in the pathways.Gene expression,especially of known rate-limiting and branch point genes,corresponded with metabolite accumulation both across development and between the two cultivars.Thus,developmental regulation of metabolite genes is an important factor in winter squash fruit quality.
出处 《Horticulture Research》 SCIE 2016年第1期105-116,共12页 园艺研究(英文)
基金 This research was supported through startup funds from Cornell University Support for Lindsay Wyatt was provided by a Cornell University Presidential Life Sciences Fellowship,USDA National Needs Graduate Fellowship Competitive Grant No.2008-38420-04755 from the National Institute of Food and Agriculture the Agriculture and Food Research Initiative Competitive Grant No.2013-67011-21122 from the USDA National Institute of Food and Agriculture.
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