Phát âm chuẩn cùng VOA – Anh ngữ đặc biệt: Better Rice and Tomatoes (VOA)

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Scientists have discovered the genetic secrets of two unpopular members of two favorite food families. They hope the discoveries will produce tastier tomatoes and stronger rice. The scientists discovered the complete set of genetic information of African rice and wild tomatoes. They published their studies in two reports in the journal Nature Genetics. There are good reasons African rice and wild tomatoes have not been popular. Asian rice is more productive and easier to process than African rice. And the wild tomato is poisonous. Rod Wing is a plant biologist at Arizona State University. He helped map the African rice genes. He says African rice can grow in salty and even poisonous soil. And it can also grow around weeds and in extremely dry conditions. He says this strength is increasingly important as climate change makes crop production more difficult. Scientists can now identify the genes that control what is good about African rice and combine those genes with Asian rice. They will be able to make better rice faster. The wild tomato also has some good qualities. Scientists found that it can grow in salty as well as very dry conditions, like the African rice. The map identifies the genes that may be responsible for these qualities. Bjorn Usadel is with Germany’s RWTH Aachen University which also took part in the mapping. Mr. Usadel says researchers also found differences in the genes of wild and farm-grown tomatoes that taste and smell. He says this could help scientists improve the flavor of tomatoes.

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