{"id":6626,"date":"2014-02-13T01:37:47","date_gmt":"2014-02-12T18:37:47","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1869"},"modified":"2014-02-13T01:37:47","modified_gmt":"2014-02-12T18:37:47","slug":"phat-hien-di-truyen-giup-dat-san-luong-cao-hon-o-cay-ca-chua-va-nhieu-cay-luong-thuc-co-hoa-khac","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/phat-hien-di-truyen-giup-dat-san-luong-cao-hon-o-cay-ca-chua-va-nhieu-cay-luong-thuc-co-hoa-khac\/","title":{"rendered":"Ph\u00e1t hi\u1ec7n di truy\u1ec1n gi\u00fap \u0111\u1ea1t s\u1ea3n l\u01b0\u1ee3ng cao h\u01a1n \u1edf c\u00e2y c\u00e0 chua v\u00e0 nhi\u1ec1u c\u00e2y l\u01b0\u01a1ng th\u1ef1c c\u00f3 hoa kh\u00e1c"},"content":{"rendered":"
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D\u00e2n l\u00e0m v\u01b0\u1eddn th\u00ec ai nh\u00ecn v\u00e0o qu\u1ea3 c\u00e0 chua c\u0169ng \u0111\u1ec1u bi\u1ebft n\u00f3 \u0111\u00e3 ch\u00edn ch\u01b0a. Nh\u01b0ng c\u00e2y c\u00e0 chua th\u01b0\u01a1ng m\u1ea1i c\u00f3 v\u1ebb ngo\u00e0i r\u1ea5t kh\u00e1c bi\u1ec7t so v\u1edbi gi\u1ed1ng nh\u00e0 v\u01b0\u1eddn, gi\u1ed1ng nh\u00e0 v\u01b0\u1eddn c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n cao l\u1edbn kh\u00f4ng ng\u1eebng trong \u0111i\u1ec1u ki\u1ec7n th\u00edch h\u1ee3p.<\/span>\u0110\u0103ng ng\u00e0y 13-02-2014<\/span> trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi<\/a><\/p>\n<\/div>\n

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Nh\u1eefng qu\u1ea3 c\u00e0 chua \u0111\u01b0\u1ee3c \u0111\u00f3ng h\u1ed9p l\u00e0m s\u1ed1t v\u00e0 n\u01b0\u1edbc \u00e9p \u0111\u01b0\u1ee3c thu ho\u1ea1ch t\u1eeb nh\u1eefng c\u00e2y ng\u01b0ng ph\u00e1t tri\u1ec3n s\u1edbm h\u01a1n c\u00e1c lo\u1ea1i c\u00e0 chua truy\u1ec1n th\u1ed1ng, v\u00e0 ch\u00ednh v\u00ec th\u1ebf ch\u00fang gi\u1ed1ng c\u00e2y b\u1ee5i h\u01a1n. M\u1eb7c d\u00f9 c\u1ea5u tr\u00fac c\u1ee7a nh\u1eefng c\u00e2y b\u1ee5i n\u00e0y cho ph\u00e9p m\u00e1y g\u1eb7t c\u00f3 th\u1ec3 thu ho\u1ea1ch v\u1ee5 m\u00f9a nh\u01b0ng vi\u1ec7c k\u1ebft th\u00fac s\u1edbm qu\u00e1 tr\u00ecnh sinh tr\u01b0\u1edfng c\u0169ng \u0111\u1ed3ng ngh\u0129a m\u1ed7i c\u00e2y s\u1ebd cho \u00edt qu\u1ea3 h\u01a1n c\u00e0 chua nh\u00e0 v\u01b0\u1eddn.<\/p>\n

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\u200b\"\"<\/span><\/div>\n

Nh\u01b0ng gi\u1ea3 s\u1eed ng\u01b0\u1eddi tr\u1ed3ng c\u00e0 chua th\u01b0\u01a1ng m\u1ea1i c\u00f3 th\u1ec3 l\u00e0m cho c\u00e2y t\u1ea1o ra nhi\u1ec1u qu\u1ea3 h\u01a1n m\u00e0 kh\u00f4ng ph\u1ea3i hy sinh h\u00ecnh d\u00e1ng c\u00e2y b\u1ee5i c\u1ea7n thi\u1ebft v\u00e0 \u0111\u1ed9c nh\u1ea5t \u0111\u00f3 th\u00ec sao? Hi\u1ec7n nay, c\u00e1c nghi\u00ean c\u1ee9u gia \u0111\u1ebfn t\u1eeb Ph\u00f2ng Th\u00ed nghi\u1ec7m Cold Spring Harbor \u0111\u00e3 tuy\u00ean b\u1ed1 r\u1eb1ng h\u1ecd \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 1 c\u00e1ch \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y. Nghi\u00ean c\u1ee9u c\u1ee7a h\u1ecd \u0111\u00e3 ti\u1ebft l\u1ed9 1 c\u01a1 ch\u1ebf di truy\u1ec1n cho \u01b0u th\u1ebf gi\u1ed1ng lai, \u0111\u00e2y l\u00e0 thu\u1ed9c t\u00ednh c\u1ee7a gi\u1ed1ng c\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u00e2ng cao s\u1ea3n l\u01b0\u1ee3ng t\u1eeb \u0111\u1ea7u th\u1ebf k\u1ef7 20.<\/span><\/span><\/p>\n

Trong c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u tr\u01b0\u1edbc \u0111\u00e2y c\u1ee7a m\u00ecnh, ph\u00f3 gi\u00e1o s\u01b0 Zach Lippman v\u00e0 c\u00e1c \u0111\u1ed3ng s\u1ef1 \u0111\u1ebfn t\u1eeb Israeli \u0111\u00e3 x\u00e1c \u0111\u1ecbnh 1 m\u1eabu \u01b0u th\u1ebf gi\u1ed1ng lai hi\u1ebfm th\u1ea5y li\u00ean quan \u0111\u1ebfn 1 khi\u1ebfm khuy\u1ebft di truy\u1ec1n \u1edf gen, khi\u1ebfm khuy\u1ebft n\u00e0y t\u1ea1o ra florigen, \u0111\u00e2y l\u00e0 hocmon \u0111i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh ra hoa v\u00e0 t\u1ea1o hoa. \u0110\u1ed9t bi\u1ebfn n\u00e0y l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 s\u1ea3n l\u01b0\u1ee3ng \u1edf nh\u1eefng c\u00e2y c\u00e0 chua d\u1ea1ng b\u1ee5i, v\u00e0 Lippman c\u00f9ng nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 t\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf \u0111\u1eb1ng sau k\u1ebft qu\u1ea3 \u0111\u00e1ng ch\u00fa \u00fd n\u00e0y.<\/span><\/span><\/p>\n

H\u1ecd nh\u1eadn th\u1ea5y r\u1eb1ng nh\u1eefng c\u00e2y th\u00e2n b\u1ee5i c\u00f3 1 \u0111\u1ed9t bi\u1ebfn \u1edf 1 trong 2 phi\u00ean b\u1ea3n gen florigen n\u00e0y \u0111\u00e3 t\u1ea1o ra florigen b\u1eb1ng \u00bd so v\u1edbi nh\u1eefng c\u00e2y kh\u00f4ng c\u00f3 \u0111\u1ed9t bi\u1ebfn n\u00e0y, \u0111i\u1ec1u n\u00e0y khi\u1ebfn c\u00e2y c\u00f3 nhi\u1ec1u qu\u1ea3 h\u01a1n. \u201c\u0110\u00e2y l\u00e0 do nh\u1eefng gi\u1ed1ng c\u00e0 chua th\u00e2n b\u1ee5i r\u1ea5t nh\u1ea1y v\u1edbi s\u1ed1 l\u01b0\u1ee3ng, ho\u1eb7c li\u1ec1u l\u01b0\u1ee3ng hocmon florigen, hocmon n\u00e0y l\u00e0m thay \u0111\u1ed5i c\u1ea5u tr\u00fac c\u00e2y \u2013 c\u00f3 ngh\u0129a l\u00e0 c\u00f3 bao nhi\u00eau hoa c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh tr\u01b0\u1edbc khi k\u1ebft th\u00fac qu\u00e1 tr\u00ecnh sinh tr\u01b0\u1edfng. Nh\u1eefng ph\u00e1t hi\u1ec7n n\u00e0y \u0111em l\u1ea1i 1 d\u1ef1 \u0111o\u00e1n th\u00fa v\u1ecb: \u0110\u00f3 l\u00e0 c\u00f3 th\u1ec3 bi\u1ebfn \u0111\u1ed5i l\u01b0\u1ee3ng florigen \u0111\u1ec3 l\u00e0m t\u0103ng s\u1ea3n l\u01b0\u1ee3ng h\u01a1n n\u1eefa\u201d.<\/span><\/span><\/p>\n

Nh\u00f3m nghi\u00ean c\u1ee9u c\u1ee7a Lippman c\u00f2n nghi\u00ean c\u1ee9u c\u00e1c \u0111\u1ed9t bi\u1ebfn florigen \u1edf 1 c\u00e2y kh\u00e1c, \u0111\u00f3 l\u00e0 c\u1ecf crucifer, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Arabidopsis, \u0111\u00e2y l\u00e0 1 trong nh\u1eefng h\u1ecd h\u00e0ng c\u1ee7a c\u00e2y b\u00f4ng c\u1ea3i xanh. M\u1eb7c d\u00f9 h\u1ecd kh\u00f4ng nh\u1eadn th\u1ea5y s\u1ef1 gia t\u0103ng t\u01b0\u01a1ng t\u1ef1 v\u1ec1 s\u1ea3n l\u01b0\u1ee3ng nh\u01b0ng h\u1ecd quan s\u00e1t th\u1ea5y nh\u1eefng thay \u0111\u1ed5i t\u01b0\u01a1ng t\u1ef1 v\u1ec1 c\u1ea5u tr\u00fac c\u00e2y do t\u00ednh nh\u1ea1y v\u1edbi li\u1ec1u l\u01b0\u1ee3ng florigen. Nh\u1eefng k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u n\u00e0y cho th\u1ea5y r\u1eb1ng c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n l\u01b0\u1ee3ng florigen \u1edf r\u1ea5t nhi\u1ec1u lo\u00e0i c\u00f3 hoa \u0111\u1ec3 l\u00e0m t\u0103ng s\u1ea3n l\u01b0\u1ee3ng c\u00e2y tr\u1ed3ng.<\/span><\/span><\/p>\n

Theo Medical Xpress<\/span><\/span><\/span><\/em><\/strong>.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

D\u00e2n l\u00e0m v\u01b0\u1eddn th\u00ec ai nh\u00ecn v\u00e0o qu\u1ea3 c\u00e0 chua c\u0169ng \u0111\u1ec1u bi\u1ebft n\u00f3 \u0111\u00e3 ch\u00edn ch\u01b0a. Nh\u01b0ng c\u00e2y c\u00e0 chua th\u01b0\u01a1ng m\u1ea1i c\u00f3 v\u1ebb ngo\u00e0i r\u1ea5t kh\u00e1c bi\u1ec7t so v\u1edbi gi\u1ed1ng nh\u00e0 v\u01b0\u1eddn, gi\u1ed1ng nh\u00e0 v\u01b0\u1eddn c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n cao l\u1edbn kh\u00f4ng ng\u1eebng trong \u0111i\u1ec1u ki\u1ec7n th\u00edch h\u1ee3p.\u0110\u0103ng ng\u00e0y 13-02-2014 trong chuy\u00ean m\u1ee5c […]\n","protected":false},"author":1,"featured_media":6389,"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\/6626"}],"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=6626"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6626\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6389"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}