Fuente: WIPO "tomato" Provided herein are plants, plant parts, a population of plants or plant parts, and plant products (e.g., seed compositions, protein compositions, oil compositions, feed, food, and beverage products) comprising reduced sucrose efflux transporter activity, and compositions and methods of producing such plants and plant parts. The plants, plant parts, population of plants or plant parts, or plant products can have one or more genetic mutations that reduces the Sugars Will Eventually Be Exported Transporter (SWEET) activity, which can be located at least partially in a SWEET39 gene or its homolog or its regulatory region, and can have increased protein content, altered seed composition, and/or altered seed size.