{"id":9495,"date":"2011-02-15T02:07:11","date_gmt":"2011-02-14T19:07:11","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2011\/02\/nghien-cuu-moi-quan-he-di-truyen-cua-12-xuat-xu-tram-ban-dia-melaleuca-cajuputi-bang-cac-chi-thi-rapd-va-adn-luc-lap\/"},"modified":"2013-10-06T09:02:08","modified_gmt":"2013-10-06T02:02:08","slug":"nghien-cuu-moi-quan-he-di-truyen-cua-12-xuat-xu-tram-ban-dia-melaleuca-cajuputi-bang-cac-chi-thi-rapd-va-adn-luc-lap","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-moi-quan-he-di-truyen-cua-12-xuat-xu-tram-ban-dia-melaleuca-cajuputi-bang-cac-chi-thi-rapd-va-adn-luc-lap\/","title":{"rendered":"Nghi\u00ean c\u1ee9u m\u1ed1i quan h\u1ec7 di truy\u1ec3n c\u1ee7a 12 xu\u1ea5t x\u1ee9 tr\u00e0m b\u1ea3n \u0111\u1ecba (Melaleuca cajuputi) b\u1eb1ng c\u00e1c ch\u1ec9 th\u1ecb RAPD v\u00e0 ADN l\u1ee5c l\u1ea1p"},"content":{"rendered":"

Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng, \u0110\u1ed7 Th\u1ecb Minh Hi\u1ec3n<\/strong> <\/p>\n

<\/strong>Trung t\u00e2m C\u00f4ng ngh\u1ec7 sinh h\u1ecdc L\u00e2m nghi\u1ec7p<\/em> <\/p>\n

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em> <\/p>\n

Tr\u1ea7n Qu\u1ed1c Tr\u1ecdng<\/strong> <\/p>\n

Vi\u1ec7n C\u00f4ng ngh\u1ec7 Sinh h\u1ecdc<\/em><\/strong> <\/p>\n

T\u00d3M T\u1eaeT<\/strong> <\/p>\n

C\u00e2y tr\u00e0m b\u1ea3n \u0111\u1ecba (M. cajuputi<\/em>)l\u00e0 c\u00e2y c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebfv\u00e0 c\u00f3 ph\u00e2n b\u1ed1 t\u1eeb B\u1eafc \u0111\u1ebfn Nam. Hi\u1ec7n nay, di\u1ec7n t\u00edch tr\u00e0m b\u1ea3n \u0111\u1ecba (M. cajuputi<\/em>) gi\u1ea3m r\u1ea5t nhi\u1ec1u do nhi\u1ec1u nguy\u00ean nh\u00e2n kh\u00e1c nhau. \u0110\u1ec3 gi\u00fap cho vi\u1ec7c b\u1ea3o t\u1ed3n ngu\u1ed3n gen v\u00e0 \u0111\u00e1nh gi\u00e1 \u0111a d\u1ea1ng di truy\u1ec1n c\u00e1c qu\u1ea7n th\u1ec3 ch\u1ecdn gi\u1ed1ng, \u0111\u1ec1 t\u00e0i \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u genome v\u00e0 gen l\u1ee5c l\u1ea1p c\u1ee7a 12 xu\u1ea5t x\u1ee9 tr\u00e0m \u0111\u01b0\u1ee3c thu t\u1eeb c\u00e1c t\u1ec9nh Th\u00e1i Nguy\u00ean, V\u0129nh Ph\u00fac, H\u00e0 T\u0129nh, Qu\u1ea3ng B\u00ecnh, Qu\u1ea3ng Tr\u1ecb, Hu\u1ebf, B\u00e0 R\u1ecba-V\u0169ng t\u00e0u, L\u00e2m \u0110\u1ed3ng, Long An, Ki\u00ean Giang b\u1eb1ng c\u00e1c ch\u1ec9 th\u1ecb RAPD v\u00e0 ADN l\u1ee5c l\u1ea1p. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch v\u1edbi c\u00e1c ch\u1ec9 th\u1ecb RAPD \u0111\u00e3 ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c 100 b\u0103ng \u0111a h\u00ecnh v\u00e0 c\u00e1c gen l\u1ee5c l\u1ea1p thu \u0111\u01b0\u1ee3c 59 b\u0103ng \u0111a h\u00ecnh. C\u00e1c s\u1ed1 li\u1ec7u \u0111a h\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c s\u1eed l\u00fd theo ch\u01b0\u01a1ng tr\u00ecnh NTSYS pc x\u00e2y d\u1ef1ng bi\u1ec3u \u0111\u1ed3 quan h\u1ec7 di truy\u1ec1n gi\u1eefa c\u00e1c xu\u1ea5t x\u1ee9 tr\u00e0m, cho th\u1ea5y m\u1eabu c\u00e1c xu\u1ea5t x\u1ee9 tr\u00e0m thu \u1edf c\u00e1c t\u1ec9nh c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u1eb7t di truy\u1ec1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c xu\u1ea5t x\u1ee9 tr\u00e0m \u1edf mi\u1ec1n B\u1eafc, mi\u1ec1n Trung v\u00e0 mi\u1ec1n B\u1eafc c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t nhau v\u1ec1 m\u1eb7t di truy\u1ec1n r\u00f5 r\u1ec7t. <\/p>\n

T\u1eeb kh\u00f3a: <\/strong>Ch\u1ec9 th\u1ecb RAPD, AND l\u1ee5c l\u1ea1p, tr\u00e0m c\u1eeb, tr\u00e0m gi\u00f3<\/strong> <\/p>\n

I.<\/strong> \u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/strong> <\/p>\n

<\/strong>C\u00e2y Tr\u00e0m ta (Melaleuca cajuputi<\/em> ) hay c\u00f2n g\u1ecdi Tr\u00e0m gi\u00f3 thu\u1ed9c h\u1ecd Sim (Myrtaceae) ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean \u1edf Vi\u1ec7t Nam, Th\u00e1i Lan, Malaysia, New Zealand, Brazil, Nigeria v\u00e0 \u0111\u1ea3o H\u1ea3i Nam (Trung Qu\u1ed1c). \u1ede Vi\u1ec7t Nam c\u00e2y tr\u00e0m ta (M. cajuputi)<\/em> ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean ch\u1ee7 y\u1ebfu \u1edf c\u00e1c t\u1ec9nh ph\u00eda Nam t\u1eebHu\u1ebf v\u00e0o \u0111\u1ebfn t\u1eadn c\u00e1c t\u1ec9nh \u0111\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long. \u0110\u1eb7c bi\u1ec7t \u1edf \u0111\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long, c\u00e2y Tr\u00e0m ta ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean, t\u1ea1o th\u00e0nh r\u1eebng tr\u00ean di\u1ec7n t\u00edch r\u1ed9ng l\u1edbn g\u1ea7n 200.000 ha. Theo Ng\u00f4 Qu\u1ebf v\u00e0 c\u1ed9ng s\u1ef1 2003 c\u00e2y Tr\u00e0m b\u1ea3n \u0111\u1ecba \u1edf Vi\u1ec7t Nam \u00edt nh\u1ea5t c\u0169ng t\u1ed3n t\u1ea1i 4 ch\u1ee7ng (Variet\u00e9) ho\u1eb7c d\u1ea1ng (forme) kh\u00e1c nhau ph\u00e2n b\u1ed1 \u1edf nh\u1eefng l\u1eadp \u0111\u1ecba kh\u00e1c nhau l\u00e0 Tr\u00e0m c\u1eeb<\/em><\/strong> c\u00f3 t\u1ea7m v\u00f3c cao 10 -15m m\u1ecdc t\u1ef1 nhi\u00ean tr\u00ean \u0111\u1ea5t ph\u00e8n \u1edf \u0111\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long; Tr\u00e0m l\u00f9n<\/em><\/strong> hay Tr\u00e0m gi\u00f3 c\u00f3 t\u1ea7m v\u00f3c nh\u1ecf b\u00e9 d\u1ea1ng c\u00e2y b\u1ee5i c\u0169ng m\u1ecdc \u1edf v\u00f9ng \u0111\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long c\u00f2n Tr\u00e0m b\u1ee5i<\/em><\/strong> v\u00e0 Tr\u00e0m b\u01b0ng <\/em><\/strong>c\u0169ng c\u00f3 t\u1ea7m v\u00f3c nh\u1ecf b\u00e9 cao kh\u00f4ng qu\u00e1 2m m\u1ecdc t\u1ef1 nhi\u00ean \u1edf \u0111\u1ed3i tr\u1ecdc c\u00f9ng Sim, Thanh hao t\u1ea1i Qu\u1ea3ng B\u00ecnh, Qu\u1ea3ng Tr\u1ecb, Th\u1eeba Thi\u00ean – Hu\u1ebf. Tr\u00e0m l\u00e0 lo\u00e0i c\u00e2y \u0111a t\u00e1c d\u1ee5ng, \u0111a sinh th\u00e1i, c\u00e2y c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 m\u1eb7t kinh t\u1ebf l\u1ea5y g\u1ed7 v\u00e0 tinh d\u1ea7u, c\u00f3 kh\u1ea3 n\u0103ng m\u1ecdc \u0111\u01b0\u1ee3c \u1edf nh\u1eefng v\u00f9ng \u0111\u1ea5t ph\u00e8n ng\u1eadp n\u01b0\u1edbc. Tuy nhi\u00ean, di\u1ec7n t\u00edch r\u1eebng tr\u00e0m nh\u01b0ng n\u0103m g\u1ea7n \u0111\u00e2y \u0111\u00e3 gi\u1ea3m r\u1ea5t nhi\u1ec1u do nhi\u1ec1u nguy\u00ean nh\u00e2n kh\u00e1c nhau c\u00f9ng v\u1edbi s\u1ef1 suy gi\u1ea3m v\u1ec1 di\u1ec7n t\u00edch c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111a d\u1ea1ng di truy\u1ec1n. V\u00ec v\u1eady, \u0111\u1ec3 b\u1ea3o t\u1ed3n v\u00e0 tr\u1ed3ng m\u1edbi l\u1ea1i c\u00e1c r\u1eebng tr\u00e0m th\u00ec vi\u1ec7c \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 \u0111a d\u1ea1ng di truy\u1ec1n c\u00e1c qu\u1ea7n th\u1ec3 tr\u00e0m b\u1ea3n \u0111\u1ecba l\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 b\u1ea3o t\u1ed3n ngu\u1ed3n gen qu\u00fd c\u0169ng nh\u01b0 ph\u1ee5c v\u1ee5 c\u00f4ng t\u00e1c c\u1ea3i thi\u1ec7n gi\u1ed1ng l\u00e0 h\u1ebft s\u1ee9c c\u1ea7n thi\u1ebft. <\/p>\n

(K\u1ef7 y\u1ebfu H\u1ed9i ngh\u1ecb Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 L\u00e2m nghi\u1ec7p v\u1edbi ph\u00e1t tri\u1ec3n r\u1eebng b\u1ec1n v\u1eefng v\u00e0 bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu, trang 23-30)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

\nCây tràm b\u1ea3n \u0111\u1ecba (M. cajuputi<\/em>) <\/strong>là cây có giá tr\u1ecb kinh t\u1ebf <\/strong>và có <\/span>phân b\u1ed1 t\u1eeb B\u1eafc \u0111\u1ebfn Nam. Hi\u1ec7n nay, di\u1ec7n tích tràm b\u1ea3n \u0111\u1ecba (M. cajuputi<\/em>) gi\u1ea3m r\u1ea5t nhi\u1ec1u do nhi\u1ec1u nguyên nhân khác nhau. \u0110\u1ec3 giúp cho vi\u1ec7c b\u1ea3o t\u1ed3n ngu\u1ed3n gen và \u0111ánh giá \u0111a d\u1ea1ng di truy\u1ec1n các qu\u1ea7n th\u1ec3 ch\u1ecdn gi\u1ed1ng, \u0111\u1ec1 tài \u0111ã ti\u1ebfn hành nghiên c\u1ee9u genome và gen l\u1ee5c l\u1ea1p c\u1ee7a 12 xu\u1ea5t x\u1ee9 tràm \u0111\u01b0\u1ee3c thu t\u1eeb các t\u1ec9nh Thái Nguyên, V\u0129nh Phúc, Hà T\u0129nh, Qu\u1ea3ng Bình, Qu\u1ea3ng Tr\u1ecb, Hu\u1ebf, Bà R\u1ecba-V\u0169ng tàu, Lâm \u0110\u1ed3ng, Long An, Kiên Giang b\u1eb1ng các ch\u1ec9 th\u1ecb RAPD và ADN l\u1ee5c l\u1ea1p.<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9495"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=9495"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9495\/revisions"}],"predecessor-version":[{"id":10949,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9495\/revisions\/10949"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}