{"id":1770,"date":"2014-06-01T10:16:12","date_gmt":"2014-06-01T03:16:12","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1770"},"modified":"2014-06-01T10:16:12","modified_gmt":"2014-06-01T03:16:12","slug":"co-dai-phat-trien-manh-hon-trong-nuong-ngo-tac-dong-toi-bieu-hien-gien-va-tang-truong-cua-ngo","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/co-dai-phat-trien-manh-hon-trong-nuong-ngo-tac-dong-toi-bieu-hien-gien-va-tang-truong-cua-ngo\/","title":{"rendered":"C\u1ecf d\u1ea1i ph\u00e1t tri\u1ec3n m\u1ea1nh h\u01a1n trong n\u01b0\u01a1ng ng\u00f4, t\u00e1c \u0111\u1ed9ng t\u1edbi bi\u1ec3u hi\u1ec7n gien v\u00e0 t\u0103ng tr\u01b0\u1edfng c\u1ee7a ng\u00f4"},"content":{"rendered":"
Theo nh\u00e0 th\u1ef1c v\u1eadt h\u1ecdc Sharon Clay, “ph\u00e1t tri\u1ec3n nh\u01b0 c\u1ecf d\u1ea1i” mang m\u1ed9t \u00fd ngh\u0129a m\u1edbi l\u00e0m s\u00e1ng t\u1ecf nh\u1eefng thay \u0111\u1ed5i trong bi\u1ec3u hi\u1ec7n gen x\u1ea3y ra khi c\u1ecf d\u1ea1i t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng m\u00e0 ch\u00fang tr\u00e0n v\u00e0o ph\u00e1 ho\u1ea1i.
\n<\/span>\u0110\u0103ng ng\u00e0y 01-06-2014<\/span> trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi<\/a><\/div>\n
\n

S\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt l\u1eadp b\u1ea3n \u0111\u1ed3 di truy\u1ec1n tinh vi, gi\u00e1o s\u01b0 tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc bang South Dakota v\u00e0 nh\u00f3m nghi\u00ean c\u1ee9u c\u1ee7a m\u00ecnh \u0111\u00e3 ghi l\u1ea1i c\u00e1ch th\u1ee9c ng\u00f4 v\u00e0 c\u1ecf d\u1ea1i \u1ea3nh h\u01b0\u1edfng l\u1eabn nhau.<\/p>\n

C\u1ecf d\u1ea1i m\u1ecdc m\u1eadp h\u01a1n v\u00e0 cao h\u01a1n khi ch\u00fang ph\u00e1t tri\u1ec3n c\u00f9ng v\u1edbi ng\u00f4, Clay n\u00f3i. V\u00e0 ng\u01b0\u1ee3c l\u1ea1i, ng\u00f4 ph\u00e1t tri\u1ec3n ch\u1eadm h\u01a1n khi m\u1ecdc c\u00f9ng c\u1ecf d\u1ea1i.<\/div>\n
Trong 20 n\u0103m qua, Clay \u0111\u00e3 nghi\u00ean c\u1ee9u c\u00e1c bi\u1ec7n ph\u00e1p qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i v\u00e0 h\u1ec7 th\u1ed1ng c\u00e2y tr\u1ed3ng, sinh l\u00fd c\u1ecf d\u1ea1i v\u00e0 s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c lo\u1ea1i thu\u1ed1c di\u1ec7t c\u1ecf, \u0111\u1ea5t v\u00e0 c\u00e2y tr\u1ed3ng.<\/div>\n
\u0110\u1ec3 t\u00ecm ra c\u00e1ch th\u1ee9c ng\u00f4 v\u00e0 c\u1ecf d\u1ea1i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ea3n \u1ee9ng gien c\u1ee7a nhau, Clay v\u00e0 m\u1ed9t nh\u00f3m hai nh\u00e0 nghi\u00ean c\u1ee9u c\u1ed9ng s\u1ef1 v\u00e0 m\u1ed9t chuy\u00ean gia v\u1ec1 \u0111\u1ea5t, \u0111\u00e3 tr\u1ed3ng tr\u00ean c\u00e1c l\u00f4 \u0111\u1ea5t th\u1eed nghi\u1ec7m: ch\u1ec9 c\u00f3 c\u1ecf velvetleaf; ng\u00f4 v\u00e0 c\u1ecf velvetleaf v\u00e0 ng\u00f4 ki\u1ec3m so\u00e1t c\u1ecf d\u1ea1i.<\/div>\n
C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u nh\u1eadn th\u1ea5y m\u1ed9t ph\u1ea3n \u1ee9ng ho\u00e0n to\u00e0n kh\u00e1c nhau khi c\u1ecf velvetleaf t\u1ef1 m\u1ecdc l\u00ean gi\u1eefa c\u00e1c c\u00e2y ng\u00f4. C\u1ecf velvetleaf khi m\u1ecdc m\u1ed9t m\u00ecnh ng\u1eafn h\u01a1n v\u00e0 m\u1eadp m\u1ea1p h\u01a1n, Clay gi\u1ea3i th\u00edch. Ngo\u00e0i ra, c\u00e1c gien \u0111\u1eb7c bi\u1ec7t c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn quang h\u1ee3p v\u00e0 c\u00e1c ph\u1ea3n \u1ee9ng th\u1ef1c v\u1eadt quan tr\u1ecdng kh\u00e1c c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t trong bi\u1ec3u hi\u1ec7n.<\/div>\n
M\u1ed9t nghi\u00ean c\u1ee9u kh\u00e1c so s\u00e1nh t\u0103ng tr\u01b0\u1edfng v\u00e0 s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a ng\u00f4 trong ph\u1ea3n \u1ee9ng v\u1edbi c\u1ecf d\u1ea1i, thi\u1ebfu nit\u01a1, ho\u1eb7c b\u00f3ng r\u00e2m. Trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p, Clay v\u00e0 Horvath \u0111\u00e3 ph\u00e1t hi\u1ec7n th\u1ea5y r\u1eb1ng, gien c\u00f3 bi\u1ec3u hi\u1ec7n kh\u00e1c nhau so v\u1edbi c\u00e1c lo\u00e0i th\u1ef1c v\u1eadt kh\u00f4ng b\u1ecb c\u0103ng th\u1eb3ng. Tuy nhi\u00ean, m\u1ed7i c\u0103ng th\u1eb3ng l\u1ea1i d\u1eabn \u0111\u1ebfn c\u00e1c bi\u1ec3u hi\u1ec7n r\u1ea5t kh\u00e1c nhau.<\/div>\n
Theo truy\u1ec1n th\u1ed1ng, c\u1ecf d\u1ea1i \u0111\u01b0\u1ee3c cho r\u1eb1ng l\u00e0m gi\u1ea3m t\u0103ng tr\u01b0\u1edfng v\u00e0 n\u0103ng su\u1ea5t c\u00e2y tr\u1ed3ng do c\u1ea1nh tranh n\u01b0\u1edbc, ch\u1ea5t dinh d\u01b0\u1ee1ng v\u00e0 \u00e1nh s\u00e1ng. Tuy nhi\u00ean, nghi\u00ean c\u1ee9u n\u00e0y ch\u1ec9 ra r\u1eb1ng, s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u1ecf d\u1ea1i v\u00e0 c\u00e2y tr\u1ed3ng ph\u1ee9c t\u1ea1p h\u01a1n nhi\u1ec1u so v\u1edbi suy ngh\u0129 c\u1ee7a c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u.<\/div>\n
Theo Clay, khi tr\u1ed3ng v\u1edbi c\u1ecf d\u1ea1i, gien ki\u1ec3m so\u00e1t c\u00e1c ph\u1ea7n ch\u00ednh c\u1ee7a qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i ch\u1ea5t c\u1ee7a c\u00e2y ng\u00f4 \u0111\u00e3 gi\u1ea3m xu\u1ed1ng ho\u1eb7c \u0111i\u1ec1u ti\u1ebft gi\u1ea3m. Ch\u00fang bao g\u1ed3m ph\u1ea3n \u1ee9ng v\u1edbi k\u00edch th\u00edch \u00e1nh s\u00e1ng, l\u01b0\u1ee3ng ch\u1ea5t di\u1ec7p l\u1ee5c ch\u00fang t\u1ea1o ra v\u00e0 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i nguy\u00ean li\u1ec7u th\u00f4 th\u00e0nh n\u0103ng l\u01b0\u1ee3ng.<\/div>\n
Trong ng\u1eafn h\u1ea1n, nh\u1eefng thay \u0111\u1ed5i trong bi\u1ec3u hi\u1ec7n gien n\u00e0y \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn kh\u1ea3 n\u0103ng ph\u00e1t tri\u1ec3n v\u00e0 sinh s\u1ea3n c\u1ee7a c\u00e2y tr\u1ed3ng.<\/div>\n
Khi c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u b\u1eaft \u0111\u1ea7u lo\u1ea1i b\u1ecf c\u1ecf d\u1ea1i ra kh\u1ecfi n\u01b0\u01a1ng ng\u00f4 ngay t\u1eeb th\u1eddi k\u1ef3 \u0111\u1ea7u, ch\u1eb3ng h\u1ea1n nh\u01b0 khi ng\u00f4 c\u00f3 hai v\u00e0 b\u1ed1n l\u00e1, h\u1ecd ch\u1ec9 nh\u00ecn th\u1ea5y s\u1ef1 kh\u00e1c bi\u1ec7t trong bi\u1ec3u hi\u1ec7n gien khi so s\u00e1nh v\u1edbi nh\u1eefng n\u01b0\u01a1ng ng\u00f4 kh\u00f4ng c\u00f3 c\u1ecf d\u1ea1i. Tuy nhi\u00ean, Clay ch\u1ec9 ra r\u1eb1ng, l\u01b0\u1ee3ng sinh kh\u1ed1i: th\u00e2n v\u00e0 l\u00e1 c\u00e2y kh\u00f4ng c\u00f3 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 n\u00e0o.<\/div>\n
Nh\u1eefng thay \u0111\u1ed5i trong bi\u1ec3u hi\u1ec7n gien c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3i th\u00edch c\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u00e1 bi\u1ec7t, trong \u0111\u00f3 s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a ng\u00f4 kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng, nh\u01b0ng \u0111\u00e3 c\u00f3 m\u1ed9t suy gi\u1ea3m nh\u1eb9 di\u1ec5n ra \u1edf c\u00e2y tr\u1ed3ng n\u00e0y m\u00e0 c\u00e1c nh\u00e0 khoa h\u1ecdc v\u1eabn kh\u00f4ng th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c.<\/div>\n
Ti\u1ebfp theo, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u xem x\u00e9t c\u00e1c t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u0103ng th\u1eb3ng n\u01b0\u1edbc t\u1edbi bi\u1ec3u hi\u1ec7n gien, s\u1eed d\u1ee5ng ng\u00f4 \u0111\u01b0\u1ee3c tr\u1ed3ng tr\u00ean v\u00f9ng \u0111\u1ea5t cao v\u00e0 th\u1ea5p. C\u00e1c gien c\u1ee7a c\u00e2y ng\u00f4 b\u1ecb c\u0103ng th\u1eb3ng n\u01b0\u1edbc tr\u1ed3ng tr\u00ean \u0111\u1ec9nh \u0111\u1ed3i \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ti\u1ebft gi\u1ea3m h\u1ea5p thu ph\u1ed1t-pho.<\/div>\n
Ngo\u00e0i ra, theo nh\u1ecbp \u0111\u1ed3ng h\u1ed3 sinh h\u1ecdc, \u0111\u1ed3ng h\u1ed3 sinh h\u1ecdc ki\u1ec3m so\u00e1t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c t\u1ebf b\u00e0o c\u1ee7a th\u1ef1c v\u1eadt “\u0111\u00e3 b\u1ecb \u1ea3nh h\u01b0\u1edfng”. \u0110i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ph\u1ea3n \u1ee9ng v\u1edbi t\u1ed5n th\u01b0\u01a1ng c\u1ee7a c\u00e2y tr\u1ed3ng v\u00e0 l\u00e0m cho n\u00f3 d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng b\u1edfi\u00a0 s\u00e2u h\u1ea1i.<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Theo nh\u00e0 th\u1ef1c v\u1eadt h\u1ecdc Sharon Clay, “ph\u00e1t tri\u1ec3n nh\u01b0 c\u1ecf d\u1ea1i” mang m\u1ed9t \u00fd ngh\u0129a m\u1edbi l\u00e0m s\u00e1ng t\u1ecf nh\u1eefng thay \u0111\u1ed5i trong bi\u1ec3u hi\u1ec7n gen x\u1ea3y ra khi c\u1ecf d\u1ea1i t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng m\u00e0 ch\u00fang tr\u00e0n v\u00e0o ph\u00e1 ho\u1ea1i. \u0110\u0103ng ng\u00e0y 01-06-2014 trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi S\u1eed […]\n","protected":false},"author":1,"featured_media":1786,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/1770"}],"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=1770"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/1770\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/1786"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=1770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=1770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=1770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}