{"id":919,"date":"2014-02-13T06:52:16","date_gmt":"2014-02-12T23:52:16","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=919"},"modified":"2014-02-13T06:52:16","modified_gmt":"2014-02-12T23:52:16","slug":"nghien-cuu-xac-dinh-gen-mui-thom-o-mot-so-giong-lua-chat-luong-o-viet-nam","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/nghien-cuu-xac-dinh-gen-mui-thom-o-mot-so-giong-lua-chat-luong-o-viet-nam\/","title":{"rendered":"Nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh gen m\u00f9i th\u01a1m \u1edf m\u1ed9t s\u1ed1 gi\u1ed1ng l\u00faa ch\u1ea5t l\u01b0\u1ee3ng \u1edf Vi\u1ec7t Nam"},"content":{"rendered":"<div class=\"TomTat clearfix\">\n<p>Nghi\u00ean c\u1ee9u do c\u00e1c t\u00e1c gi\u1ea3 Khu\u1ea5t H\u1eefu Trung v\u00e0 Nguy\u1ec5n Th\u00fay \u0110i\u1ec7p thu\u1ed9c Vi\u1ec7n Di truy\u1ec1n N\u00f4ng nghi\u1ec7p, Vi\u1ec7n KHNN Vi\u1ec7t Nam th\u1ef1c hi\u1ec7n nh\u1eb1m gi\u1edbi thi\u1ec7u k\u1ebft qu\u1ea3 \u1ee9ng d\u1ee5ng ch\u1ec9 th\u1ecb ph\u00e2n t\u1eed k\u1ebft h\u1ee3p v\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh gi\u00e1 c\u1ea3m quan \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh gen m\u00f9i th\u01a1m c\u1ee7a m\u1ed9t s\u1ed1 gi\u1ed1ng l\u00faa b\u1ea3n \u0111\u1ecba c\u1ee7a Vi\u1ec7t Nam nh\u1eb1m b\u1ea3o t\u1ed3n v\u00e0 khai th\u00e1c ngu\u1ed3n gen qu\u00fd ph\u1ee5c v\u1ee5 c\u00f4ng t\u00e1c ch\u1ecdn t\u1ea1o gi\u1ed1ng l\u00faa ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"NoiDungBai\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td><\/td>\n<\/tr>\n<tr>\n<td>H\u01b0\u01a1ng th\u01a1m c\u1ee7a l\u00faa \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean b\u1edfi h\u01a1n m\u1ed9t tr\u0103m h\u1ee3p ch\u1ea5t kh\u00e1c nhau, trong \u0111\u00f3 2-Acetyl-l- Pyroline (2-AP) l\u00e0 ch\u1ea5t \u0111\u00f3ng vai tr\u00f2 ch\u00ednh th\u1ec3 hi\u1ec7n m\u00f9i th\u01a1m \u1edf nhi\u1ec1u gi\u1ed1ng l\u00faa. Qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p ch\u1ea5t 2-AP ph\u1ee5 thu\u1ed9c gi\u00e1n ti\u1ebfp v\u00e0o ho\u1ea1t t\u00ednh c\u1ee7a enzym Betain Aldehyde Dehydrogenase 2 (BAD2). Khi BAD2 ho\u1ea1t \u0111\u1ed9ng m\u1ea1nh s\u1ebd c\u1ea1nh tranh c\u01a1 ch\u1ea5t v\u1edbi enzyme sinh t\u1ed5ng h\u1ee3p 2-AP l\u00e0m h\u00e0m l\u01b0\u1ee3ng 2-AP b\u1ecb gi\u00e0m \u0111\u1ebfn m\u1ee9c l\u00faa s\u1ebd kh\u00f4ng c\u00f3 m\u00f9i th\u01a1m. V\u00ec v\u1eady, gi\u1ed1ng l\u00faa n\u00e0o mang gen BAD2 nguy\u00ean v\u1eb9n s\u1ebd kh\u00f4ng th\u1ebf hi\u1ec7n m\u00f9i th\u01a1m. Theo ph\u1ea7n l\u1edbn c\u00e1c nh\u00e0 khoa h\u1ecdc th\u00ec t\u00ednh tr\u1ea1ng h\u01b0\u01a1ng th\u01a1m do gen l\u1eb7n \u0111i\u1ec1u khi\u1ec3n v\u00e0 kh\u00f4ng c\u00f3 \u1ea3nh h\u01b0\u1eddng c\u1ee7a t\u1ebf b\u00e0o ch\u1ea5t. Trong nghi\u00ean c\u1ee9u n\u00e0y, c\u00e1c t\u00e1c gi\u1ea3 s\u1eed d\u1ee5ng c\u00e1c ch\u00ec th\u1ecb ph\u00e2n t\u1eed k\u1ebft h\u1ee3p v\u1edbi ph\u01b0\u01a1ng ph\u00e1p c\u1ea3m quan \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 m\u00f9i th\u01a1m c\u1ee7a 50 gi\u1ed1ng l\u00faa ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a Vi\u1ec7t Nam.<\/p>\n<p>&nbsp;<\/p>\n<p>K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y: c\u00f3 43 gi\u1ed1ng l\u00faa c\u00f3 h\u01b0\u01a1ng th\u01a1m t\u1eeb \u00edt \u0111\u1ebfn nhi\u1ec1u (\u0111i\u1ec3m 1-2) v\u00e0 7 gi\u1ed1ng l\u00faa kh\u00f4ng th\u01a1m (\u0111i\u1ec3m 0). \u1ede m\u1ee9c ph\u00e2n t\u1eed: 33 gi\u1ed1ng c\u00f3 gen BAD2 \u1edf tr\u1ea1ng th\u00e1i \u0111\u1ed3ng h\u1ee3p t\u1eed l\u1eb7n (chi\u1ebfm t\u1ef7 l\u1ec7 66%); 9 gi\u1ed1ng c\u00f3 gen BAD2 \u1edf tr\u1ea1ng th\u00e1i \u0111\u1ed3ng h\u1ee3p t\u1eed tr\u1ed9i (chi\u1ebfm t\u1ef7 l\u1ec7 18%) v\u00e0 8 gi\u1ed1ng l\u00faa c\u00f3 gen BAD2 \u1edf tr\u1ea1ng th\u00e1i d\u1ecb h\u1ecdp t\u1eed (chi\u1ebfm t\u1ef7 l\u1ec7 16%). H\u1ea7u h\u1ebft c\u00e1c gi\u1ed1ng l\u00faa th\u01a1m truy\u1ec1n th\u1ed1ng (c\u00e1c gi\u1ed1ng l\u00faa T\u00e1m) v\u00e0 c\u00e1c gi\u1ed1ng l\u00faa th\u01a1m n\u1ed5i ti\u1ebfng (n\u00e0ng th\u01a1m ch\u1ee3 \u0111\u00e0o, n\u00e0ng th\u01a1m \u0111\u1eb7c s\u1ea3n, th\u01a1m l\u00e0i\u2026) \u0111\u1ec1u c\u00f3 gen BAD2 \u1edf tr\u1ea1ng th\u00e1i \u0111\u1ed3ng h\u1ee3p t\u1eed l\u1eb7n v\u00e0 \u0111\u1ec1u bi\u1ec3u hi\u1ec7n m\u00f9i th\u01a1m. M\u1ed9t s\u1ed1 gi\u1ed1ng c\u00f3 ki\u1ec3u gen th\u01a1m d\u1ecb h\u1ee3p t\u1eed, \u0111i\u1ec1u n\u00e0y ch\u1ee9ng t\u1ecf trong qu\u1ea7n th\u1ec3 t\u1ed3n t\u1ea1i c\u1ea3 nh\u1eefng c\u00e1 th\u1ec3 \u0111\u1ed3ng h\u1ee3p t\u1eed tr\u1ed9i v\u00e0 \u0111\u1ed3ng h\u1ee3p t\u1eed l\u1eb7n (do t\u1ef1 ph\u1ed1i) v\u00e0 do \u0111\u00f3 bi\u1ec3u hi\u1ec7n m\u00f9i th\u01b0m \u1edf m\u1ee9c \u0111\u1ed9 kh\u00e1c nhau khi \u0111\u00e1nh gi\u00e1 b\u1eb1ng c\u1ea3m quan. B\u1ed1n gi\u1ed1ng c\u00f3 ki\u1ebfu gen \u0111\u1ed3ng h\u1ee3p t\u1eed tr\u1ed9i v\u1ec1 gen BAD2 nh\u01b0ng l\u1ea1i c\u00f3 h\u01b0\u01a1ng th\u01a1m (T\u00e1m tr\u1eafng V\u0129nh Ph\u00fac, Kh\u1ea9u tan p\u1ecfn, N\u1ebfp c\u00e1i n\u01b0\u01a1ng v\u00e0 Ne n\u01b0\u01a1ng) c\u00f3 th\u1ec3 c\u00f3 alen \u0111\u1ed9t bi\u1ebfn kh\u00e1c \u1edf locus BAD2; ho\u1eb7c t\u1ed3n t\u1ea1i m\u1ed9t locus gen kh\u00e1c ki\u1ec3m so\u00e1t m\u00f9i th\u01a1m.<\/p>\n<p>&nbsp;<\/p>\n<p>Qua k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y c\u1ea7n ph\u1ea3i nghi\u00ean c\u1ee9u ti\u1ebfp, x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c c\u01a1 ch\u1ebf ki\u1ec3m so\u00e1t m\u00f9i th\u01a1m c\u1ee7a c\u00e1c gi\u1ed1ng l\u00faa tr\u00ean, ph\u1ee5c v\u1ee5 c\u00f4ng t\u00e1c ch\u1ecdn t\u1ea1o gi\u1ed1ng.<\/p>\n<p>&nbsp;<\/td>\n<\/tr>\n<tr>\n<td>\n<p align=\"right\"><strong><em>Theo T\u1ea1p ch\u00ed C\u00f4ng ngh\u1ec7 sinh h\u1ecdc<\/em><\/strong><\/p>\n<div><strong><em>\u00a0<\/em><\/strong><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Nghi\u00ean c\u1ee9u do c\u00e1c t\u00e1c gi\u1ea3 Khu\u1ea5t H\u1eefu Trung v\u00e0 Nguy\u1ec5n Th\u00fay \u0110i\u1ec7p thu\u1ed9c Vi\u1ec7n Di truy\u1ec1n N\u00f4ng nghi\u1ec7p, Vi\u1ec7n KHNN Vi\u1ec7t Nam th\u1ef1c hi\u1ec7n nh\u1eb1m gi\u1edbi thi\u1ec7u k\u1ebft qu\u1ea3 \u1ee9ng d\u1ee5ng ch\u1ec9 th\u1ecb ph\u00e2n t\u1eed k\u1ebft h\u1ee3p v\u1edbi ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh gi\u00e1 c\u1ea3m quan \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh gen m\u00f9i th\u01a1m c\u1ee7a m\u1ed9t s\u1ed1 gi\u1ed1ng [&#8230;]\n","protected":false},"author":1,"featured_media":5934,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/919"}],"collection":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/comments?post=919"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/919\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/5934"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}