{"id":6881,"date":"2019-12-13T15:19:00","date_gmt":"2019-12-13T08:19:00","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=5638"},"modified":"2019-12-13T15:19:00","modified_gmt":"2019-12-13T08:19:00","slug":"dieu-kien-tien-quyet-cua-osago1b-gay-ra-cac-la-cuon-dac-biet-bang-cach-anh-huong-den-su-phat-trien-te-bao-mo-cung-cua-truc-la-tren-cay-lua","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/dieu-kien-tien-quyet-cua-osago1b-gay-ra-cac-la-cuon-dac-biet-bang-cach-anh-huong-den-su-phat-trien-te-bao-mo-cung-cua-truc-la-tren-cay-lua\/","title":{"rendered":"\u0110i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft c\u1ee7a OsAGO1b g\u00e2y ra c\u00e1c l\u00e1 cu\u1ed1n \u0111\u1eb7c bi\u1ec7t b\u1eb1ng c\u00e1ch \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n t\u1ebf b\u00e0o m\u00f4 c\u1ee9ng c\u1ee7a tr\u1ee5c l\u00e1 tr\u00ean c\u00e2y l\u00faa"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-family: arial, helvetica, sans-serif;\">C\u00e1c protein ARGONAUTE 1 (AGO1) c\u00f3 th\u1ec3 b\u1ed5 sung c\u00e1c RNA nh\u1ecf \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh bi\u1ec3u hi\u1ec7n gen, li\u00ean quan \u0111\u1ebfn m\u1ed9t s\u1ed1 qu\u00e1 tr\u00ecnh t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n trong c\u00e2y Arabidopsis. B\u1ed9 gen c\u1ee7a l\u00faa ch\u1ee9a b\u1ed1n gen AGO1, OsAGO1a \u0111\u1ebfn OsAGO1d. Tuy nhi\u00ean, ch\u1ee9c n\u0103ng \u0111i\u1ec1u ti\u1ebft \u0111\u1ed1i v\u1edbi s\u1ef1 t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a t\u1eebng lo\u1ea1i gen AGO1 v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c bi\u1ebft.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: arial, helvetica, sans-serif;\">C\u00e1c k\u1ebft qu\u1ea3 \u0111\u00e3 thu \u0111\u01b0\u1ee3c c\u00e1c d\u00f2ng bi\u1ebfn \u0111\u1ed5i gen v\u00e0 RNAi c\u1ee7a t\u1eebng gen OsAGO1. Tuy nhi\u00ean, ch\u1ec9 c\u00f3 \u0111i\u1ec1u ch\u1ec9nh t\u0103ng v\u00e0 gi\u1ea3m c\u1ee7a OsAGO1b \u0111\u00e3 g\u00e2y ra nhi\u1ec1u thay \u0111\u1ed5i v\u1ec1 ki\u1ec3u h\u00ecnh b\u1ea5t th\u01b0\u1eddng \u1edf c\u00e2y l\u00faa, cho th\u1ea5y OsAGO1b l\u00e0 nh\u00e2n t\u1ed1 ch\u00ednh trong t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u01a1 quan c\u1ee7a l\u00faa so v\u1edbi ba OsAGO1 kh\u00e1c. C\u00e1c th\u1eed nghi\u1ec7m qRT-PCR cho th\u1ea5y OsAGO1b g\u1ea7n nh\u01b0 \u0111\u01b0\u1ee3c bi\u1ec3u hi\u1ec7n nh\u1ea5t tr\u00ed \u1edf c\u00e1c l\u00e1 \u1edf c\u00e1c giai \u0111o\u1ea1n ph\u00e1t tri\u1ec3n kh\u00e1c nhau v\u00e0 \u0111\u01b0\u1ee3c bi\u1ec3u hi\u1ec7n m\u1ea1nh m\u1ebd \u1edf c\u00e1c gai \u1edf giai \u0111o\u1ea1n S1 \u0111\u1ebfn S3. OsAGO1b l\u00e0 m\u1ed9t protein AGO \u0111i\u1ec3n h\u00ecnh v\u00e0 \u0111\u1ed3ng th\u1eddi \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb trong c\u1ea3 nh\u00e2n v\u00e0 t\u1ebf b\u00e0o ch\u1ea5t. S\u1ef1 bi\u1ec3u hi\u1ec7n qu\u00e1 m\u1ee9c c\u1ee7a OsAGO1b \u0111\u00e3 g\u00e2y ra nh\u1eefng chi\u1ebfc l\u00e1 cu\u1ed9n \u0111\u1eb7c bi\u1ec7t v\u00e0 m\u1ed9t lo\u1ea1t c\u00e1c ki\u1ec3u h\u00ecnh b\u1ea5t th\u01b0\u1eddng, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1ed1 l\u01b0\u1ee3ng m\u00e1y x\u1edbi gi\u1ea3m v\u00e0 chi\u1ec1u cao c\u1ee7a c\u00e2y.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: arial, helvetica, sans-serif;\">C\u00e1c d\u00f2ng knockdown c\u1ee7a OsAGO1b cho th\u1ea5y c\u00e1c l\u00e1 g\u1ea7n nh\u01b0 b\u00ecnh th\u01b0\u1eddng, nh\u01b0ng t\u1ef7 l\u1ec7 c\u00e0i \u0111\u1eb7t h\u1ea1t gi\u1ed1ng \u0111\u00e3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 k\u00e8m theo s\u1ef1 \u0111\u00f3ng g\u00f3i bao ph\u1ea5n v\u00e0 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng sinh s\u1ea3n c\u1ee7a ph\u1ea5n hoa. Quan s\u00e1t gi\u1ea3i ph\u1eabu s\u00e2u h\u01a1n cho th\u1ea5y r\u1eb1ng th\u1ef1c v\u1eadt bi\u1ec3u hi\u1ec7n qu\u00e1 m\u1ee9c OsAGO1b cho th\u1ea5y s\u1ef1 ph\u00e1t tri\u1ec3n khi\u1ebfm khuy\u1ebft m\u1ed9t ph\u1ea7n c\u1ee7a c\u00e1c t\u1ebf b\u00e0o x\u01a1 c\u1ee9ng \u1edf ph\u00eda b\u00ean tr\u00e1i c\u1ee7a l\u00e1. Trong lai t\u1ea1o t\u1ea1i ch\u1ed7 cho th\u1ea5y mRNA OsAGO1b \u0111\u01b0\u1ee3c t\u00edch l\u0169y \u0111\u1ed3ng \u0111\u1ec1u t\u1eeb P1 \u0111\u1ebfn P3 m\u00e0 kh\u00f4ng c\u00f3 thu\u1ed9c t\u00ednh ph\u00e2n c\u1ef1c, cho th\u1ea5y OsAGO1b kh\u00f4ng \u0111i\u1ec1u ch\u1ec9nh tr\u1ef1c ti\u1ebfp s\u1ef1 ph\u00e1t tri\u1ec3n ph\u00e2n c\u1ef1c. M\u1ee9c \u0111\u1ed9 bi\u1ec3u hi\u1ec7n c\u1ee7a m\u1ed9t s\u1ed1 gen li\u00ean quan \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n ph\u00e2n c\u1ef1c c\u1ee7a l\u00e1 v\u00e0 s\u1ef1 ph\u00e2n bi\u1ec7t b\u00f3 m\u1ea1ch \u0111\u00e3 thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3. \u0110\u00e1ng ch\u00fa \u00fd, s\u1ef1 t\u00edch l\u0169y c\u1ee7a miR166 v\u00e0 TAS3-siRNA \u0111\u00e3 gi\u1ea3m v\u00e0 c\u00e1c OSHB v\u00e0 OsARF \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau c\u1ee7a h\u1ecd \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh t\u0103ng \u0111\u00e1ng k\u1ec3. C\u00e1c m\u1eabu ph\u00e2n ph\u1ed1i mRNA c\u1ee7a OSHB3 v\u00e0 OsARF4 trong l\u00e1 h\u1ea7u nh\u01b0 kh\u00f4ng thay \u0111\u1ed5i gi\u1eefa c\u00e1c d\u00f2ng bi\u1ec3u hi\u1ec7n qu\u00e1 m\u1ee9c c\u1ee7a ZH11 v\u00e0 OsAGO1b, nh\u01b0ng m\u1ee9c \u0111\u1ed9 bi\u1ec3u hi\u1ec7n c\u1ee7a ch\u00fang \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng \u1edf c\u00e1c v\u00f9ng c\u1ee7a b\u00f3 m\u1ea1ch v\u00e0 s\u1ef1 bi\u1ec7t h\u00f3a t\u1ebf b\u00e0o x\u01a1 c\u1ee9ng v\u00e0\u00a0 OsAGO1b c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh s\u1ef1 bi\u1ec7t h\u00f3a t\u1ebf b\u00e0o x\u01a1 c\u1ee9ng tr\u1ee5c ch\u00ednh b\u1eb1ng c\u00e1ch \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 bi\u1ec3u hi\u1ec7n c\u1ee7a OSHB tr\u00ean c\u00e2y l\u00faa.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"font-family: arial, helvetica, sans-serif;\">Ngu\u1ed3n: ncbi.nlm.nih.gov<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1c protein ARGONAUTE 1 (AGO1) c\u00f3 th\u1ec3 b\u1ed5 sung c\u00e1c RNA nh\u1ecf \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh bi\u1ec3u hi\u1ec7n gen, li\u00ean quan \u0111\u1ebfn m\u1ed9t s\u1ed1 qu\u00e1 tr\u00ecnh t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n trong c\u00e2y Arabidopsis. B\u1ed9 gen c\u1ee7a l\u00faa ch\u1ee9a b\u1ed1n gen AGO1, OsAGO1a \u0111\u1ebfn OsAGO1d. Tuy nhi\u00ean, ch\u1ee9c n\u0103ng \u0111i\u1ec1u ti\u1ebft \u0111\u1ed1i v\u1edbi s\u1ef1 t\u0103ng tr\u01b0\u1edfng [&#8230;]\n","protected":false},"author":1,"featured_media":6894,"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\/6881"}],"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=6881"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6881\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6894"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}